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OverviewThis low power audio module is based on WM8960, supports stereo encoding/decoding, supports sound recording, whats more, it can directly drive speakers to play music.Features1. Integrates high-quality MEMS silicon Mic, supports sound recording2. Onboard standard 3.5mm 4-segment earphone jack, allows sound recording via external earphones with Mic3. Onboard dual-channel speaker interface, directly drives speakers4. Supports common audio sampling rates such as 8/11.025/22.05/44.1/48KHz, etc.5. Supports sound effects such as stereo, 3D surrounding, etc.6. Comes with development resources and manual (STM32 examples for playing, recording)Specifications1. CODEC: WM89602. Operating voltage: 3.3V3. Control interface: I2C4. Audio interface: I2S5. Audio format: WAV6. DAC signal-noise ratio: 98dB7. ADC signal-noise ratio: 94dB8. Earphone driver: 40mW (16Ω@3.3V)9. Speaker driver: 1W per channel (8Ω BTL)Specification: Package Weight One Package Weight 0.02kgs / 0.04lb One Package Size 7cm * 4cm * 2cm / 2.76inch * 1.57inch * 0.79inch Qty per Carton 1600 Carton Weight 15.00kgs / 33.07lb Carton Size 56cm * 40cm * 40cm / 22.05inch * 15.75inch * 15.75inch Loading Container 20GP: 297 cartons * 1600 pcs = 475200 pcs40HQ: 690 cartons * 1600 pcs = 1104000 pcs

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1. Ground resistance measurement range: 0.01 ohm - 3000 ohm, accuracy ±1.5% rdg ±5dgt2. Ground resistance resolution: 0.01 ohm3. Ground voltage measurement range: 0.01 - 600V AC, accuracy ±1.5% rdg ±3dgt4. Ground voltage resolution: 0.01V5. Baseline conditions: 23℃ ± 5℃, below 75% rh; auxiliary ground resistance 100 ohm ±5%, ground voltage less than 10V6. Functions: ground resistance measurement, ground voltage measurement, low resistance measurement7. Power supply: DC 6V 1.5V LR14 battery (battery not included in shipment)8. Backlight: adjustable gray-white screen backlight, suitable for dim places9. Measurement method: precise three-wire measurement, simple two-wire measurement10. Measurement method: ground resistance: rated current change method, maximum measurement current 30mA, 128Hz; ground voltage: average rectification11. Resistance line check: avoid errors caused by incomplete insertion of test lines into the instrument interface or poor contact or user replacement of extended test lines, making ground resistance measurement more accurate12. Display mode: 4-digit large LCD display, gray-white screen backlight13. Measurement indication: LED flashes during measurement, LCD countdown display14. Measurement time: ground voltage: about 2 times/second; ground resistance: about 5 seconds/each measurement15. Measurement times: more than 5000 times16. Line voltage: measurement of ground voltage: AC 600V or below17. USB interface: has USB interface, software monitoring, data can be uploaded to the computer for storage and printing18. Communication line: USB communication line 1, 1.5m long19. Data storage: 500 groups, full symbol flashing indicates storage is full20. Data inquiry: data inquiry function: MR symbol displayed21. Overflow display: over-range overflow function: OL symbol displayed22. Alarm function: alarm prompt when measurement value exceeds alarm set value23. Battery voltage: real-time display of battery voltage, reminder to charge when battery voltage is low24. Power consumption - backlight: max 25mA25. Power consumption - standby: max 25mA (backlight off)26. Power consumption - measurement: max 70mA (backlight off)27. LCD size: about 10.8 x 6.5cm28. Instrument size: about 24 x 18.8 x 8.5cm29. Test Line length: 3 lines: red 15m, yellow 10m, green 5m each 1 line30. Simple test line: 2 lines: red 1.5m, green 1.5m each 1 line31. Auxiliary ground rods: 2 rodsSpecification: Package Weight One Package Weight 3.16kgs / 6.98lb One Package Size 32cm * 29cm * 27cm / 12.6inch * 11.42inch * 10.63inch Qty per Carton 1 Carton Weight 4.00kgs / 8.82lb Carton Size 32cm * 29cm * 27cm / 12.6inch * 11.42inch * 10.63inch Loading Container 20GP: 1064 cartons * 1 pcs = 1064 pcs40HQ: 2470 cartons * 1 pcs = 2470 pcs

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Features1. Drive free, no software or app installation, no setup, no cables required. 2. Support PC, laptop, media player and any devices with HDMI jack 3. High resolution up to 1080p 4.164FT clear line of sight transmission distance, 120ms low latency 5. Built-in 5GHz transmission standard technology makes transmission efficiency faster and more stable 6. Support point to point wireless configuration. 7. Audio and video synchronize 8. Support HDCP to ensure data securitySpecificationTransmitter 1. Interface: 1*HDMI-in, 1*micro USB 2. LED: Red, Blue, Purple 3. Power Supply: DC 5V/0.5A 4. Power Consumption: About 2.5W 5. Unit Size: 83mm x 32mm x 13 mm 6. Unit Weight: 27g Receiver 1. Interface: 1*HDMI-out, 1*micro USB 2. LED: Blue 3. Power Supply: DC 5V/0.5A 4. Power Consumption: About 2.5W 5. Unit Size: 83mm x 32mm x 13 mm 6. Unit Weight: 27g Support Format - Video Input: 1920x1080 (1080p60/50/30/25/24, 1080i60/50), 1280x720(720p60/50), 720x576(576p50), 720x480(480p60) Video Output Up to 1080P60 Others 1. Audio: Stereo, quality 16bits 48KHz 2. Wireless Channel: IEEE 802.11ac, 5GHz, 2T2R 3. Latency: 120ms 4. HDMI Version: HDMI 1.3 with HDCP 5. Authentication Protocol: WPA2 (WPAS-PSK / WPA2-Enterprise)???AES 128 bit 6. Device Supported: Any devices with HDMI jack 7. Transmission Distance: About 50 meters in the clear line of sight 8. Operating Temperature: 0 degree C to +40 degree C (+32 degree F to +104 degree F) 9. Operating Humidity: 10% to 80% RH 10. Storage Temperature: -10 degree C to +60 degree C (+14 degree F to +140 degree F) 11. Storage Humidity: 5% to 90% RHPackage List1. Transmitter x 1 2. Receiver x 1 3. Micro USB Cable x 1 4. HDMI Extender Cable x 1 5. Manual x 1Specification: Package Weight One Package Weight 0.20kgs / 0.45lb One Package Size 12cm * 12cm * 5cm / 4.72inch * 4.72inch * 1.97inch Qty per Carton 60 Carton Weight 13.00kgs / 28.66lb Carton Size 52cm * 32cm * 40cm / 20.47inch * 12.6inch * 15.75inch Loading Container 20GP: 400 cartons * 60 pcs = 24000 pcs40HQ: 930 cartons * 60 pcs = 55800 pcs

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NUCLEO-L476RG DescriptionThe STM32 Nucleo board provides an affordable and flexible way for users to try out new ideas and build prototypes with any STM32 microcontroller line, choosing from the various combinations of performance, power consumption and features. The Arduino? connectivity support and ST Morpho headers make it easy to expand the functionality of the STM32 Nucleo open development platform with a wide choice of specialized shields.The STM32 Nucleo board does not require any separate probe as it integrates the ST-LINK/V2-1 debugger and programmer.The STM32 Nucleo board comes with the STM32 comprehensive software HAL library together with various packaged software examples, as well as direct access to mbed online resources.NUCLEO-L476RG Key FeaturesSTM32 microcontroller with LQFP64 packageTwo types of extension resourcesArduino Uno Revision 3 connectivitySTMicroelectronics Morpho extension pin headers for full access to all STM32 I/Osmbed-enabled (http://mbed.org)On-board ST-LINK/V2-1 debugger/programmer with SWD connectorselection-mode switch to use the kit as a standalone ST-LINK/V2-1Flexible board power supplyUSB VBUS or external source(3.3 V, 5 V, 7 - 12 V)Power management access pointThree LEDsUSB communication (LD1), user LED (LD2), power LED (LD3)Two push buttons: USER and RESETUSB re-enumeration capability: three different interfaces supported on USBVirtual Com portMass storageDebug portSupported by wide choice of Integrated Development Environments (IDEs) including IAR?, Keil?, GCC-based IDEsSpecification: Package Weight One Package Weight 0.11kgs / 0.25lb One Package Size 10cm * 9cm * 5cm / 3.94inch * 3.54inch * 1.97inch Qty per Carton 192 Carton Weight 15.00kgs / 33.07lb Carton Size 60cm * 36cm * 40cm / 23.62inch * 14.17inch * 15.75inch Loading Container 20GP: 308 cartons * 192 pcs = 59136 pcs40HQ: 716 cartons * 192 pcs = 137472 pcs

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1. Material: ABS2. Measuring range: 1.2V~4.8V and 9V battery power3. Display: Digital display screen4. Weight: 29.2g5. Dimensions: 52.6x23.4x53.9 mm6. Universal AA AAA C D 9V button battery tester (Not include battery), put the battery between two points of the battery tester, the easy-to-read display will tell you whether there is power immediatelySpecification: Package Weight One Package Weight 0.09kgs / 0.19lb One Package Size 15cm * 12cm * 5cm / 5.91inch * 4.72inch * 1.97inch Qty per Carton 100 Carton Weight 11.00kgs / 24.25lb Carton Size 52cm * 50cm * 32cm / 20.47inch * 19.69inch * 12.6inch Loading Container 20GP: 320 cartons * 100 pcs = 32000 pcs40HQ: 744 cartons * 100 pcs = 74400 pcs

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1. Power port: Type-C2. Output resolution: 1080P/60Hz3. Power supply: 5V/2A4. Receiver port specifications: HDMI/Type-C/VGA/3.5mm audio port5. Suitable for wireless screen projection of devices with high-definition HDMI interface output6. Support 5G/2.4G dual-band WiFi, high-definition video wireless transmission7. Wireless network: IEEE 802.11ac 2.4GHz/5GHz8. Plug and play, no software, no settings, no drivers required9. Note: The transmitter cannot be used alone and must be used with the receiverSpecification: Package Weight One Package Weight 0.33kgs / 0.74lb One Package Size 16cm * 14cm * 4cm / 6.3inch * 5.51inch * 1.57inch Qty per Carton 63 Carton Weight 21.79kgs / 48.04lb Carton Size 50cm * 44cm * 30cm / 19.69inch * 17.32inch * 11.81inch Loading Container 20GP: 404 cartons * 63 pcs = 25452 pcs40HQ: 937 cartons * 63 pcs = 59031 pcs

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1. Brightness: 2202. Contrast: 500:1-800:13. Response time: 7ms4. Input interface: power interface, antenna interface, AV input, U disk interface, TF card interface5. Output interface: headphone output6. Keys: 7, menu key, mode switch key, confirmation key, direction key up/down/left/right7. Stereo speakers: 2 1W speakers8. Battery capacity: 7.4V 1500MAH9. Playing time: 90 minutes10. Digital TV format: ISDB-T, DVB-T/T2, ATSC (Dolby costs extra)11. Power standby mode: toggle switch12. Power supply: DC12V13. Character language: English, Russian, German, French, Italian and other 22 languages available14. The remote control uses AA batteries (not included)15. Accessories: power supply/remote control/instruction manual/antenna/AV cableSpecification: Package Weight One Package Weight 0.60kgs / 1.33lb One Package Size 19cm * 13cm * 11cm / 7.48inch * 5.12inch * 4.33inch Qty per Carton 12 Carton Weight 8.30kgs / 18.30lb Carton Size 40cm * 28cm * 35cm / 15.75inch * 11.02inch * 13.78inch Loading Container 20GP: 680 cartons * 12 pcs = 8160 pcs40HQ: 1579 cartons * 12 pcs = 18948 pcs

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1. With copy function2. Used for: TV / VCR / SAT / CBL / STR-T / DVD / VCD / CD / HI-FI3. Long-distance distance: 8 meters or more4. Powered by 2 AAA batteries (not included)5. Product size: 18.8x5x32cm6. Weight: 77 gramsSpecification: Package Weight One Package Weight 0.09kgs / 0.21lb One Package Size 20cm * 6cm * 3cm / 7.87inch * 2.36inch * 1.18inch Qty per Carton 120 Carton Weight 12.30kgs / 27.12lb Carton Size 40cm * 36cm * 30cm / 15.75inch * 14.17inch * 11.81inch Loading Container 20GP: 617 cartons * 120 pcs = 74040 pcs40HQ: 1432 cartons * 120 pcs = 171840 pcs

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1. Screw fixed, easy wiring, button switch2. Suitable for RV, tourist car, yacht and other environments.3. Unique fashion panel design, 3-speed rocker switch4. Panel material: aluminum5. Overload protection, safer and more secure to use6. Rated voltage: 12V7. Rated current: 10A8. Dimensions: 83x64x52mmSpecification: Package Weight One Package Weight 0.20kgs / 0.45lb One Package Size 10cm * 8cm * 6.5cm / 3.94inch * 3.15inch * 2.56inch Qty per Carton 146 Carton Weight 30.00kgs / 66.14lb Carton Size 52cm * 42cm * 34cm / 20.47inch * 16.54inch * 13.39inch Loading Container 20GP: 359 cartons * 146 pcs = 52414 pcs40HQ: 833 cartons * 146 pcs = 121618 pcs

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About The ProductOverview 1. This is an industrial USB to RS485 converter with original FT232RL and SP485EEN inside. It features embedded protection circuits such as lightningproof, resettable fuse, ESD protection, and TVS diode, etc. It is pretty small in size. 2. The USB TO RS485 is very easy to use, allows automatic transceiving. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for industrial control equipments and/or applications with high communication requirement. Features 1. USB to RS485 communication 2. Adopt original FT232RL and SP485EEN, fast communicating, stable and reliable, better compatibility 3. Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & anti-electrostatic 4. Onboard self-recovery fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock resistance 5. 3 LEDs for indicating the power and transceiver status Specifications 1. Product type: Industrial converter 2. Baudrate: 300-921600bps 3. Host port: USB 4. Device port: RS485 5. USB: - Operating voltage: 5V - Connector: USB-A - Protection: 200mA self-recovery fuse, ESD protection - Transmission distance: about 5m 6. RS485: - Connector: screw terminal - Pins: A+, B-, GND - Direction control: hardware automatic control - Protection: 600W lightningproof and surge-suppress, 15KV ESD protection (onboard 120R balancing resistor) - Transmission distance: about 1200m (low rate) - Transmission mode: point-to-multipoints (up to 32 nodes, it is recommended to use repeaters for 16 nodes or more) 7. LED indicators: - PWR: red power indicator, light up when there is USB connection and voltage is detected - TXD: red TX indicator, light up when the USB port sends data - RXD: red RX indicator, light up when the device ports send data back 8. Operating environment: - Temperature: -15 ~ 70 degree - Humidity: 5%RH ~ 95%RH 9. Operating system: Mac, Linux, Android, WinCE, Windows 10 / 8.1 / 8 / 7 / XPPackage List1. USB TO RS485 x 1 2. USB-A male to female cable x 1 3. Screwdriver x 1Specification: Package Weight One Package Weight 0.09kgs / 0.21lb One Package Size 15cm * 12cm * 2cm / 5.91inch * 4.72inch * 0.79inch Qty per Carton 200 Carton Weight 19.00kgs / 41.89lb Carton Size 42cm * 22cm * 22cm / 16.54inch * 8.66inch * 8.66inch Loading Container 20GP: 1311 cartons * 200 pcs = 262200 pcs40HQ: 3045 cartons * 200 pcs = 609000 pcs

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FeaturesThe A7670E Cat-1 HAT is an LTE Cat-1 module, which supports wireless communication modes including LTE-TDD, LTE-FDD, GSM, GPRS and EDGE, with up to 10Mbps downlink rate and 5Mbps uplink rate. It supports Windows/Linux operating systems and multiple network protocols. The module size is the same as SIM7000/SIM7070 series, and the AT commands is mostly compatible with SIM7600 series. It is suitable for IoT applications like remote information processing, monitoring devices, POS, industrial routers, remote diagnosis, and so on. 1. Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards 2. Support protocols including TCP/IP, HTTP(s), MQTT(s), FTP(s), and SSL 3. Support dial-up, telephone call, SMS 4. Support LBS base station positioning, it is able to get the approximate position info via mobile network 5. TTS (Text To Speech) feature, texts in Chinese/English can be converted into spoken words 6. Onboard USB interface, for testing AT Commands, network communication, and so on 7. Onboard audio jack for sound recording, making telephone call, listening the TTS resulting speech, etc. 8. Breakout common used control pins of the A7670X module, make it easy to connect with hosts boards like Arduino/STM32 9. SIM card slot, supports 1.8V/3V SIM card 10. 2x LED indicators, easy to monitor the operating status 11. Onboard voltage translator, operating voltage can be configured to 3.3V or 5V via jumper 12. Come with development resources and manual (examples for Raspberry Pi/Arduino/STM32)SpecificationFrequency band 1. LTE Cat-1: LTE-FDD: B1, B3, B5, B7, B8, B20 2. 2G: GSM/GPRS/EDGE: 900/1800 MHz SMS and audio 1. SMS: Supported types: MT, MO, CB, Text, PDU 2. Storage: USIM card (CB could not be stored on SIM card) 3. Audio feature: Standard 3.5mm audio jack for audio input/output Others 1. Power supply: 5V 2. Operating voltage:5V / 3.3V (configured via jumper) 3. Operating temperature: -30 degree C ~ 80degree C 4. Storage temperature: -45 degree C ~ 90 degree C 5. Dimensions: 65 x 30.5mmPackage List1. A7670E Cat-1 HAT x 1 2. LTE Antenna x 1 3. USB-A to USB-C cable x 1 4. RPi screws pack x 1Specification: Package Weight One Package Weight 0.09kgs / 0.20lb One Package Size 15cm * 12cm * 3cm / 5.91inch * 4.72inch * 1.18inch Qty per Carton 200 Carton Weight 17.00kgs / 37.48lb Carton Size 46cm * 32cm * 32cm / 18.11inch * 12.6inch * 12.6inch Loading Container 20GP: 566 cartons * 200 pcs = 113200 pcs40HQ: 1314 cartons * 200 pcs = 262800 pcs

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1. Material: plastic2. Counting range: counting 0-999993. Power supply: use a button electronic AG104. Ring type manual electronic counter with LED light5. The keys are sensitive and the characters move accurately6. There is an automatic sleep mode, the LED light is automatically turned off, and it saves more battery7. Size: about 3.8x3x1.6 cm8. Weight: about 20 gramsKey Description:1. Count key: After pressing the value +1, a beep will sound every 100 times.2. Reset button: press the LDC full-screen display, release the data to zero3. LED button: press to turn on the LED backlight and turn off automatically after 5 secondsSpecification: Package Weight One Package Weight 0.10kgs / 0.22lb One Package Size 6cm * 6cm * 4cm / 2.36inch * 2.36inch * 1.57inch Qty per Carton 302 Carton Weight 30.00kgs / 66.14lb Carton Size 40cm * 40cm * 26cm / 15.75inch * 15.75inch * 10.24inch Loading Container 20GP: 641 cartons * 302 pcs = 193582 pcs40HQ: 1488 cartons * 302 pcs = 449376 pcs

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