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Hardware specifications 1. Chipset: ESP32-WROVER-B, AXP192 power management chip 2. Flash: 4MB 3. Static SRAM: 8MB 4. SRAM: 520 kB SRAM 5. Button: PWR power switch, reset 6. USB to TTL: CP2104 7. Vehicle clock: 40MHz crystal oscillator 8. Peripheral equipment: SIM Nano card slot, Mini PCIE card slot 9. Antenna: Onboard antenna (default) 10. Working voltage: 2.7V to 3.6V 11. Sleep current: About 700ma 12. Operating temperature range: -40 degrees Celsius ~ + 85 degrees Celsius 13. Dimensions: 75 x 33 x 10.5 mm 14. Weight: 14.5g Power Specifications 1. Power input: USB 5V / 1A 2. Charging current: 500 mA 3. Battery input: 3.7-4.2V 4. Charging IC: AXP192 5. JST connector: 2-pin 2.0mm 6. USB: Type C wireless online 1. Standard: FCC / CE-RED / IC / TELEC / KCC / SRRC / NCC (ESP32 chip) 2. Protocol: 802.11 b/g/n (802.11n, speed up to 150Mbps) A-MPDU and A-MSDU aggregation, support 0.4uS guard interval 3. Frequency range: 2.4GHz-2.5GHz (2400M-2483.5M) 4. Transmit power: 22dBm 5. Communication distance: 300m Bluetooth 1. Protocol: Compliant with Bluetooth v4.2BR/EDR and BLE standards 2. Radio frequency: NZIF receiver Class-1 with sensitivity of -97dBm, Class-2&Class-3 transmitter AFH 3. Audio: CVSD&SBC audio Software specifications 1. Wi-Fi mode: Workstation / SoftAP / SoftAP + Station / P2P 2. Security mechanism: WPA / WPA2 / WPA2-Enterprise / WPS 3. Encryption method: AES / RSA / ECC / SHA 4. Firmware upgrade: UART download/OTA (download and write firmware via network/host) 5. Software development: support cloud server development / SDK for user firmware development 6. Network protocol: IPv4, IPv6, SSL, TCP, UDP, HTTP, FTP, MQTT 7. User configuration: AT + command set, cloud server, Android / iOS app 8. Operating system: FreeRTOS Packing list 1. T-PCIE 4MB x 1 2. Charging cable x 1 3. Needle Pin x 2Specification: Package Weight One Package Weight 0.05kgs / 0.11lb One Package Size 15cm * 12cm * 2cm / 5.91inch * 4.72inch * 0.79inch Qty per Carton 300 Carton Weight 13.00kgs / 28.66lb Carton Size 46cm * 32cm * 32cm / 18.11inch * 12.6inch * 12.6inch Loading Container 20GP: 566 cartons * 300 pcs = 169800 pcs40HQ: 1314 cartons * 300 pcs = 394200 pcs

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1. Number of component pairs: 1272. Assembly pressure: 85N/cm23. Be sure to apply thermal grease when installing the radiator4. The literal is cold side, and the non-literal is hot side5. Packaging process: standard 704 silicone rubber seal around6. Packaging standard: foam box packaging, storage conditions ambient temperature -10 ~ 40 degrees Celsius7. Working environment: temperature range -55～83 degrees Celsius (excessive ambient temperature will directly affect the cooling efficiency)8. The working state of the cooling plate is that one side is cooling and the other side is heating, and the heating surface must be well dissipated during work. It is strictly forbidden to energize for more than 2 seconds without heat dissipation, so as to avoid overheating and burning.9. Dimensions: 12703: 40x40x4.0mm, 12709: 40x40x3.4mm, 12710: 40x40x3.4mm, 12715: 40x40x3 .3mm10. Other parameters:- 12703: Wire specification: lead length 310+/-5mm, RV standard wire, single head 5mm tin-plated, internal resistance: 4.0~4.3 ohms (ambient temperature 23+/-1 degrees Celsius, 1kHZ Ac test), working current: Imax=12 ( When starting at rated voltage), rated voltage: DC12V (Vmax: 15.5V), cooling power: Qcmax 27W- 12709: Current: less than or equal to 9A, temperature difference: less than or equal to 68 degrees Celsius, voltage: less than or equal to 15.2V, hot end temperature: 82W- 12710: Wire specification: lead length 300+/-5mm, RV standard wire, single head 5mm tin plated, internal resistance: 1.2~1.5 ohms (ambient temperature 23+/-1 degrees Celsius, 1kHZ Ac test), working current: Imax=10A ( 15Vmax voltage start), rated voltage: DC12V (Vmax: 15.5V), cooling power: Qcmax 92W- 12715: Voltage: less than or equal to 15.4V, current: less than or equal to 15A, cold output: 134WSpecification: Package Weight One Package Weight 0.02kgs / 0.05lb One Package Size 12cm * 12cm * 1cm / 4.72inch * 4.72inch * 0.39inch Qty per Carton 500 Carton Weight 11.00kgs / 24.25lb Carton Size 46cm * 32cm * 32cm / 18.11inch * 12.6inch * 12.6inch Loading Container 20GP: 566 cartons * 500 pcs = 283000 pcs40HQ: 1314 cartons * 500 pcs = 657000 pcs

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1. Multifunctional, not only has calculator function, but also has e-book reader function. 2. Comfortable e-book, text document reading 3. Privacy screen, it is difficult for others to read your display from the side. 4. One-touch lock calculator use, shortcuts to calculator functions. Shortcuts from calculator functions to tax readings. 5. Support USB charging and data transfer. 6. Easily transfer text documents from computer to device. 7. Battery capacity: 900mAH 8. Video playback support: AMV, AVI 9. Music player: support WMA, WAV, MP3 and other players 10. Picture browser: support JPEG, BMP, GIF 11. Storage capacity: 4GB + memory card 12. Supported languages: Simplified Chinese, Traditional Chinese, English, Japanese, Korean, French, German, Italian, Dutch, Portuguese, Spanish, Swedish, Czech, Danish, Polish, Russian, Turkish, Hungarian, Romanian, Arabic, Hebrew, Thai, Indonesian, GreekSpecification: General Certificate CE, MSDS Package Weight One Package Weight 0.29kgs / 0.64lb One Package Size 18cm * 11cm * 3cm / 7.09inch * 4.33inch * 1.18inch Qty per Carton 50 Carton Weight 18.50kgs / 40.79lb Carton Size 37cm * 28cm * 49cm / 14.57inch * 11.02inch * 19.29inch Loading Container 20GP: 525 cartons * 50 pcs = 26250 pcs40HQ: 1219 cartons * 50 pcs = 60950 pcs

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Features1. Material: Made of premium and durable nylon material exterior and soft lining interior, lightweight and sturdy, offer comprehensive protection against knocks, impacts, bumps, drops, dents and scratches. 2. Multi-usage: It can hold power adapters, charger, batteries, power bank, mouse, earphones, hard drive, memory cards, mini digital camera, pen, cables, external driver, flashdrive, basic first aid items, chargers, several USB cables, scissors, makeup, passport ,memory cards,key, smartphones and such. 3. Easy to Carry: Portable and lightweight design, the slim profile of the case makes it very easy to fit inside of carry-ons, office, leisure, travel can carry, easy to put in a backpack or handbag. 4. Waterproof and Dustproof: The electronics organizer case adopt waterproof fabric, do not worry about wet from splashing water or rain, and protects your laptop accessories against spills, dust, and other contaminants, easy to wash and reuse. 5. Convenience: Smooth zippers make it easier to open and close the bag to get your charger, cable or any other electronic accessories in a short time. If you are tired of rummaging around the house for your little gadgets, this organizer can do you a favor.Specifications1. Fabric: Polyester 2. Lining: 210D 3. Ingredients: Nylon Mesh 4. Size: 19.5 x 12 x 8.5cm / 7.78 x 4.7 x 3.3 in 5. Weight: 60gSpecification: General Certificate GPSR Package Weight One Package Weight 0.07kgs / 0.16lb One Package Size 19cm * 15cm * 3cm / 7.48inch * 5.91inch * 1.18inch Qty per Carton 40 Carton Weight 3.04kgs / 6.70lb Carton Size 41cm * 32cm * 27cm / 16.14inch * 12.6inch * 10.63inch Loading Container 20GP: 752 cartons * 40 pcs = 30080 pcs40HQ: 1747 cartons * 40 pcs = 69880 pcs

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1. Compatible with Alexa and Google Home to manage your devices. 2. RF switch is a Sonoff version with a 433MHz RF receiver module inside.This wireless switch can be used together with the RF remote controller, which enables you to control appliances in indoor environment. 3. The remote control switch allows users remote turn on/off connected appliances via app eWeLink from anywhere in the world. 4. Sonoff transmits data to a cloud platform through the Wi-Fi Router, which enables you to remotely control the connected appliances, via free eWeLink App. You can download the iOS version in App Store and the Android version in Google Play. The App eWeLink enables you to control your devices easily. 5. Share control with your family and friends. Also you can DIY set this buy yourself easy handling and can be activated immediately and stably. 6. Timing function: Another feature available if to set timing schedules for the appliances, which can include countdown, scheduled on/off . It's simple, giving you one less thing to worry about in your busy life.Specification: General Material ABS Input Voltage AC 90-250V 50/60Hz Max Load 10A RF Frequency 433MHz WiFi IEEE 802.11b/g/n Certifications CE, ROHS Product Size 8.8*3.9*2.3cm Product Weight 47g Package Include Package Contents 1 x Smart Switch 1 x Screw Set Package Weight One Package Weight 0.06kgs / 0.13lb One Package Size 10cm * 5cm * 2.5cm / 3.94inch * 1.97inch * 0.98inch Qty per Carton 100 Carton Weight 7.20kgs / 15.87lb Carton Size 42cm * 27cm * 27cm / 16.54inch * 10.63inch * 10.63inch Loading Container 20GP: 870 cartons * 100 pcs = 87000 pcs40HQ: 2021 cartons * 100 pcs = 202100 pcs

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1. Using the rotary encoder used in high-end speakers, stepless tuning, smooth hand feel, one-key start and stop2. High-quality all-copper DC plug, long life3. 3.5mm audio output, connected to active power box4. Free large area heat sink5. Number of channels: left and right dual channel (stereo)6. Protection mechanism: power reverse connection protection, short circuit protection, self-recovery overheat protection7. Purpose: Bluetooth speaker amplifier motherboard8. Bluetooth version: 5.09. Adapter speaker: 20-300W 4 ohm 8 ohm10. Transmission distance: 15 meters (without blocking)11. Supply voltage: DC 5-26V12. Dimensions: 53x18x58mm13. Weight: about 70gSpecification: Package Weight One Package Weight 0.08kgs / 0.18lb One Package Size 8cm * 8cm * 4cm / 3.15inch * 3.15inch * 1.57inch Qty per Carton 336 Carton Weight 30.00kgs / 66.14lb Carton Size 55cm * 55cm * 27cm / 21.65inch * 21.65inch * 10.63inch Loading Container 20GP: 326 cartons * 336 pcs = 109536 pcs40HQ: 757 cartons * 336 pcs = 254352 pcs

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1. Realistic sound, simulating real strike effects. 2. Can play pop, rock, Latin, electronic and other styles. 3. Hi-hat using the pedal control to simulate the real hi-hat effect, there are closed, open, pedal hi-hat sound effects. 4. The position of the hi-hat and the snare drum can be interchanged to suit the player's hand habit, which can avoid the inconvenience of playing in the same plane. 5. The drum is simulated by pedals, and the hands and feet are used to practice more like real drums, and the well-behaved hand and foot coordination is well trained. 6. Two-channel output, good sound effects (external speakers must be used to make sound). 7. Headphone output, you can practice without disturbing others. 8. Built-in metronome basic function, training a good sense of rhythm. 9. This section does not have a link computer game function. Product feature: 1.Compact size and portable roll-up electronic drum set, very convenient to carry and store. 2.With 7 silicon drum pads including Tom/Snare/Hi-Hat/Crash/Ride, making excellent sounds and simulating real beating effect. 3.SNARE and HI-HAT positions can be exchanged by pressing SPECIAL button, according to the hahit of player. Built-in 5 drum set tones, 8 demo songs and 3 types of rhythms for easier practice. 4.Supports USB port or 2 * AAA batteries power supply.(batteries are not included) 5.With 3.5mm headphone output jack for connecting external earphone or speaker. 6.With MP3 input for connecting MP3/smartphone/ tablet to playing accompanying music. 7.Comes with a pair of drum sticks, 2 sustain pedals, a USB cable, and a 3.5mm audio cable. Ideal for drum set learning & practicing of kids or beginners, family entertainment and friends gathering. Specifications: 1.Material: Silicon + Plastic, Non-toxic and harmless environmental protection silicone, silicone pad 100% waterproof . 2.Drum Set Tones: POP, Rock, Latin, Electro, Percussion. 3.Demo Songs: Heavy Rock, Funk, Latin, Samba, Cha-Cha, Swing Hi-Hat, Upbeat Rock. 4.Power Supply: USB Cable(included) or 2 x AAA Batteries(not included). 5.Item Size: 43 x 28 x 2.7cm / 16.9 x 11 x 1.1 inch. 6.Item Weight: 455g / 16oz. 7.Power: DC 5V. 8.Input: 2.5W. 9.Output: 2W. Package includes: Hand Roll Drum x 1 Plastic bag x 1 User Manual x 1 Drum Sticks x 2Specification: Package Weight One Package Weight 0.93kgs / 2.05lb One Package Size 45cm * 30cm * 4.7cm / 17.72inch * 11.81inch * 1.85inch Qty per Carton 8 Carton Weight 9.50kgs / 20.94lb Carton Size 62cm * 40cm * 40cm / 24.41inch * 15.75inch * 15.75inch Loading Container 20GP: 268 cartons * 8 pcs = 2144 pcs40HQ: 624 cartons * 8 pcs = 4992 pcs

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Features1. The potentiometer adjusts the volume with a switch for easy control of the volume, making it good for DIY speakers.If it is a metal box, you need to bring out the Bluetooth antenna. 2. The copper DC connector is used to withstand high current and no heat. 3. Capacitor 470uf35V solid capacitors ensure power storage and heat dissipation, and stable power supply is a prerequisite for good sound quality. 4. Free DC head lead, compatible with the input power interface of this product, even if you do not have a DC head adapter or battery, it can be easily wired. 5. Bluetooth 5.0 version, the transmission efficiency is higher, the transmission distance is farther. Precautions for use: The power switch on the board is the standby switch. After the switch is turned off, the machine is in a low-power standby state. To completely turn off the power or unplug the DC plug on the machine for a long time.Specification1. Material: ABS plastic 2. Bluetooth version: 5.0 3. Adaptation supply voltage: 5-24V(optional 9/12/15/18/24V adapter, high power recommended high voltage) 4. Adapter speaker: 30-200W, 4 ohms - 8 ohms 5. Number of channels: Left and right stereo(stereo) 6. Bluetooth transmission distance: 15m(without occlusion) 7. Protection mechanism: Self-recovery overheat protection, self-recovery short circuit protection 8. Size: 55 x 38 x 17mm Tip: To have enough out put power if the input is sufficient and the supply voltage/current is sufficient. The power supply voltage is higher and the relative power will be larger. The speakers with different impedances will have different output power. In the case of sufficient voltage and current, the larger the ohms of the horn, the smaller the relative sound powre. Please pay attention! Power supply voltage: 12V--8 ohm speaker/12W(left channel) + 12W(right channel), 4 ohm speaker/20W + 20W 15V--8 ohms/18 + 18W, 4 ohms/greater than 30 + 30W 19V--8 ohms/32 + 32W, 4 ohms/greater than 45 + 45W 24V--8 ohms/38 + 38W, 4 ohms/greater than 50 + 50WSpecification: Package Weight One Package Weight 0.07kgs / 0.15lb One Package Size 13cm * 6cm * 3cm / 5.12inch * 2.36inch * 1.18inch Qty per Carton 200 Carton Weight 14.80kgs / 32.63lb Carton Size 32cm * 32cm * 53cm / 12.6inch * 12.6inch * 20.87inch Loading Container 20GP: 491 cartons * 200 pcs = 98200 pcs40HQ: 1140 cartons * 200 pcs = 228000 pcs

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Features1. Comes with RM500U-CN core module, supports 5G and LTE-A multi network types, supports 5G NSA and SA networking 2. Integrates extensive network protocols, with multi drivers and software support, compatible with different OS including Windows / Linux / Android 3. USB 3.1 port (USB 2.0 compatible) for connecting to PC, Raspberry Pi, or Jetson Nano host board to enable high speed 5G communication 4. Standard M.2 B KEY slot, compatible with different 5G modules: RM500U-CN / RM500Q-CN / RM500Q-GL series 5. Onboard UART, PWR, and RST control pin, built-in voltage level translator, enabled via DIP switch, for use with hosts like Raspberry Pi or Arduino 6. Onboard USB-C connector, enabled via switch, for connecting standalone power supply for the module, allows more loads, stable amd flexible power supply 7. Onboard power supply on/off switch, reset button and LED indicator, easy to turn on/off the module or monitor the operating status 8. 2x SIM card slot, dual card single standby, switchable via AT command 9. High efficiency power supply circuit, up to 3A output currentSpecificationsFrequency band: 1. 5G: - 5G NR: 3GPP Release 15 NSA/SA operation, Sub-6 GHz - 5G NR NSA: n41, n78, n79 - 5G NR SA: n1, n28, n41, n77, n78, n79 - Downlink: 4 x 4 MIMO n1, n41, n77, n78, n79 2. LTE: - LTE Category: Downlink Cat 12, uplink Cat 13 - LTE-FDD: B1, B2, B3, B5, B7, B8, B20, B28 - LTE-TDD: B34, B38, B39, B40, B41 - Downlink 2 x 2 MIMO: B1, B2, B3, B5, B7, B8, B20, B28, B34, B38, B39, B40, B41 3. UMTS: WCDMA: B1, B2, B5, B8 Data rate: 1. 5G SA Sub-6: Downlink 2 Gbps; uplink 1 Gbps 2. 5G NSA Sub-6: Downlink 2.2 Gbps; uplink 575 Mbps 3. LTE: Downlink 600 Mbps; uplink 150 Mbps 4. UMTS: Downlink 42.2 Mbps; uplink 11 Mbps Other: 1. Operating temperature: -30 degree C ~ +75 degree C 2. Extension temperature: -40 degree C ~ +85 degree C 3. Module dimensions: 30.0 x 52.0 x 2.3 (mm) 4. Module weight: 8.9 (g)Package List1. M.2 TO 4G/5G HAT x 1 2. RM500U-CN x 1 3. Antenna 4pcs x 1 4. IPEX adapter cable 4pcs x 1 5. 2*20PIN pin header x 1 6. 5V 3A Type-C power adapter x 1 7. Dual plug USB3.0 cable x 1 8. USB3.0 adapter x 1 9. USB2.0 adapter x 1 10. SMA protective cap 4pcs x 1 11. Screws pack x 1Specification: Package Weight One Package Weight 0.36kgs / 0.79lb One Package Size 20cm * 16cm * 4cm / 7.87inch * 6.3inch * 1.57inch Qty per Carton 40 Carton Weight 13.00kgs / 28.66lb Carton Size 46cm * 32cm * 32cm / 18.11inch * 12.6inch * 12.6inch Loading Container 20GP: 566 cartons * 40 pcs = 22640 pcs40HQ: 1314 cartons * 40 pcs = 52560 pcs

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1. Alarm clock prompts, do not delay life and work2. Time display, 12/24 hour system conversion3. LCD large screen design, clear font display4. No matter spring, summer, fall or winter, feel the surrounding temperature at any time5. Night backlight light up, easy to check the time, daytime backlight light up, soft brightness does not hurt the eyes6. Frost alarm function, sense the weather changes7. Simple and convenient installation, will not damage the car bodyParameters:1. Material: ABS2. Structure type: adjustable angle type3. Cable length: 240cm4. Power supply: 2 x AAA batteries (not included in shipment)5. Temperature measurement range: -18-50 degrees Celsius6. Temperature function: dual temperature (inside and outside the car temperature)7. Special function: outdoor frost warning8. Support night light: yes9. Screen size: 8.5 x 4cm10. Weight: about 110gSpecification: Package Weight One Package Weight 0.16kgs / 0.35lb One Package Size 11cm * 9cm * 6cm / 4.33inch * 3.54inch * 2.36inch Qty per Carton 90 Carton Weight 15.50kgs / 34.17lb Carton Size 50cm * 38cm * 35cm / 19.69inch * 14.96inch * 13.78inch Loading Container 20GP: 401 cartons * 90 pcs = 36090 pcs40HQ: 930 cartons * 90 pcs = 83700 pcs

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1. Build your DIY-powered models / solar toys / solar displays. 2. High conversion rate. 3. High-efficiency output. 4. Excellent weak light effect. 5. Application: Science projects/Charging small DC batteries and so on. 6. Portable, small size, lightweight, sturdy and durable, good quality. 7. Power: 1.2W 8. Small attenuation, good reliability and long life. Specification: Package Weight One Package Weight 0.11kgs / 0.24lb One Package Size 15cm * 10cm * 1cm / 5.91inch * 3.94inch * 0.39inch Qty per Carton 240 Carton Weight 21.00kgs / 46.30lb Carton Size 45cm * 35cm * 35cm / 17.72inch * 13.78inch * 13.78inch Loading Container 20GP: 483 cartons * 240 pcs = 115920 pcs40HQ: 1122 cartons * 240 pcs = 269280 pcs

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1. Brand new and high quality. 2. Small and lightweight, easy to carry. 3. Display devices use high bright LED digital tube, stunning display effect. 4. With reverse polarity protection, reverse not burned. 5. The voltmeter only two wires, wiring simple and reliable performance. 6. Suitable for measuring DC voltage, measure range: 2.5V ~ 30V. 7. When measuring voltage below 10V, two digits are displayed after the decimal point; when measuring voltage above 10V, one digit is displayed after the decimal point.Specification: General Material Electronic Component Current <30mA Measure Range DC 2.5-30V Input impedance >50Kohm Operating Temperature -10 ~ 65 Degree Celsius Cable Length 15cm Operating Humidity 10 ~ 80% Reading Display 0.36 inch Cutting Size 28mm space, 2.8mm diameter Size 33x15x10 mm Weight 4g Package Weight One Package Weight 0.06kgs / 0.13lb One Package Size 15cm * 7cm * 4cm / 5.91inch * 2.76inch * 1.57inch Qty per Carton 200 Carton Weight 11.00kgs / 24.25lb Carton Size 48cm * 32cm * 32cm / 18.9inch * 12.6inch * 12.6inch Loading Container 20GP: 542 cartons * 200 pcs = 108400 pcs40HQ: 1259 cartons * 200 pcs = 251800 pcs

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