Search results for "environmental electronics"

Features1. TPA3251D2 power amplifier chip scheme is adopted: TPA3251D2 is a high-performance class D power amplifier, which has class D efficiency and can bring real high-end sound quality. The device features advanced integrated feedback design and proprietary high-speed gate driver error correction (pure path TM HD). This technology can make the device maintain ultra-low distortion in the whole audio frequency band and show high-definition sound quality at the same time. 2. Bluetooth-compatible 5.1 audio power amplifier module: 2.1 dual channel stereo output, output power 220W * 2 (left and right channels) + 350W (subwoofer), pure HiFi sound quality. The treble is pure and transparent, the midrange is gentle and delicate, and the bass is surging and shocking. 3. Classic appearance multifunctional main knob: the main knob adopts rotary encoder only used in high-end power amplifier to realize 360 degree stepless tuning. It feels smooth, one key start and stop, long press to start and stop, and the operation is simple and convenient. 4. Support mobile app control: newly upgrade Sini link app; Support to modify Bluetooth-compatible name; Set Bluetooth-compatible password; Off / on tone 5. Supported audio input: Bluetooth-compatible 5.1, AUX, USB sound card, USB flash disk 6. Heat dissipation mechanism: Heat sink + fan for heat dissipation, safe and worry free. Large area aluminum alloy heat sink with special-shaped structure and fan support are adopted to reduce the temperature and effectively ensure the full power operation of the productSpecification1. Power supply: Above DC12-38V/10A 2. Bluetooth version: 5.1 3. Audio channel: 2.1 channels 4. Audio input: Bluetooth-compatible + AUX + USB flash disk + USB sound card 5. Audio output: left and right channels + subwoofer 6. Frequency range: 20Hz -- 20KHz 7. Volume adjustment: Encoder knob adjustment, smooth feel 8. Output power of left and right channels: - 220W/3ohms--36VDC - 175W/4ohms--36VDC - 100W/8ohms--36VDC 9. Output power of subwoofer: - 355W/2ohms--36VDC - 250W/3ohms--36VDC - 195W/4ohms-36VDC 10. Protection mechanism: Overvoltage, undervoltage, clipping, short circuit, overheating and other protection 11. Unique functions: Support sinlink app, modify Bluetooth-compatible name, set Bluetooth-compatible password, and turn off / on prompt tone 12. Product size: 130mm x 116mm x 27mmSpecification: Package Weight One Package Weight 0.42kgs / 0.92lb One Package Size 15cm * 12cm * 4cm / 5.91inch * 4.72inch * 1.57inch Qty per Carton 40 Carton Weight 17.00kgs / 37.48lb Carton Size 42cm * 25cm * 32cm / 16.54inch * 9.84inch * 12.6inch Loading Container 20GP: 793 cartons * 40 pcs = 31720 pcs40HQ: 1842 cartons * 40 pcs = 73680 pcs

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1. Using semi-flexible polysilicon solar panels, light and portable, easy to use outdoors2. Integrate 5V voltage stabilizing circuit, and lead out 2 USB ports, which can be powered by external 5V devices through USB, with working indicator light3. Reserve the DC5521 power interface, which can be used to connect to a power management module or controller that supports 18V solar panels4. Comes with a variety of accessories and adapter cables for easy useParameter:1. Solar cells: polysilicon2. Surface material: semi-flexible laminate (not overbending)3. Solar panel power: 10W4. Output interface:DC5521 female port- The solar panel is not converted, and the power supply interface is directly output- Working voltage: 18V +/-5%- Working current: 600mA +/- 5% (Max)- Open circuit voltage: 21.6V +/- 5%Dual USB 5V ports:- After the solar panel passes through the 5V voltage regulator circuit, the output power supply interface- Working voltage: 5V (sufficient power and stable 5V output only if the sun is well illuminated; if there is no sunlight or the light is weak, the output voltage and power are insufficient, so it is not suitable for use)- Output current: 1.5A (voltage regulator circuit can support 5V/3A output, but limited to -solar panel power, actual use of light and loss, 2-way total output up to 1.5A)5. Product size: 435 × 200mmNote: The above parameters are tested under standard conditions (1000W/m2 radiation intensity, 25 degrees Celsius temperature, AM1.5 air quality)Specification: Package Weight One Package Weight 0.70kgs / 1.55lb One Package Size 46cm * 22cm * 8cm / 18.11inch * 8.66inch * 3.15inch Qty per Carton 42 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 42 pcs = 7434 pcs40HQ: 412 cartons * 42 pcs = 17304 pcs

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1. Driver chip: SH11062. Interface: 3-wire SPI, 4-wire SPI, I2C3. Resolution: 128*644. Display size: 1.3 inch5. Colors: Blue6. Visible angle: >160 degree7. Operating temperature: -30~70 degree C8. Storage temperature: -30~80 degree C9. Dimension: 40.50mm*37.50mmSpecification: Package Weight One Package Weight 0.03kgs / 0.07lb One Package Size 6cm * 4cm * 2cm / 2.36inch * 1.57inch * 0.79inch Qty per Carton 2000 Carton Weight 15.00kgs / 33.07lb Carton Size 60cm * 40cm * 40cm / 23.62inch * 15.75inch * 15.75inch Loading Container 20GP: 277 cartons * 2000 pcs = 554000 pcs40HQ: 644 cartons * 2000 pcs = 1288000 pcs

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1. Comes with dual USB charging ports, which can directly charge the mobile phone 2. Simple sliding device, easy to switch between different plugs 3. Built-in over-temperature protection, over-voltage protection, over-current protection, over-charge protection, short-circuit protection, etc., double fuses, safer charging 4. Small size, easy to carry 5. Material: ABS 6. Weight: about 119g 7. Size: 54x60x52mm 8. Input: 100-240V ~ 50/60Hz 300mA 9. Single port/dual port USB output: 5V/2.4A (Max) 10. Rated current: 8A (Max) 11. Rated power: 1840W (Max)Specification: Package Weight One Package Weight 0.19kgs / 0.41lb One Package Size 15cm * 10cm * 5.5cm / 5.91inch * 3.94inch * 2.17inch Qty per Carton 120 Carton Weight 21.00kgs / 46.30lb Carton Size 52cm * 35cm * 37cm / 20.47inch * 13.78inch * 14.57inch Loading Container 20GP: 396 cartons * 120 pcs = 47520 pcs40HQ: 919 cartons * 120 pcs = 110280 pcs

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1. ESP32-S3-DEV-KIT-N8R8 is a microcontroller development board with a small size and a variety of digital interfaces.2. In terms of software, you can choose ESP-IDF, Arduino, MicroPython and other development environments for development, so that you can get started easily and quickly, and apply them to products.3. Using ESP32-S3-WROOM-1-N8R8 module, equipped with Xtensa 32-bit LX7 dual-core processor, the main frequency is up to 240MHz4. Integrated 512KB SRAM, 384KB ROM, 8MB PSRAM, 8MB Flash memory5. Integrated 2.4GHz Wi-Fi and Bluetooth Low Energy (Bluetooth LE) dual-mode wireless communication with superior RF performance6. Using the USB Type-C interface, no need to tangle with the front and back plugs7. The onboard CH343 and CH334 chips can meet the development and use requirements of USB and UART through a Type-C interface8. Lead out rich peripheral interfaces, pin compatible with ESP32-S3-DevKitC-1 development board, strong compatibility and expandability9. Stamp hole design, can be directly welded and integrated into the bottom plate designed by the user10. Support a variety of low-power working states, adjust the balance between communication distance, data rate and power consumption, and meet the power consumption requirements of various application scenariosSpecification: Package Weight One Package Weight 0.03kgs / 0.06lb One Package Size 8cm * 5cm * 4cm / 3.15inch * 1.97inch * 1.57inch Qty per Carton 500 Carton Weight 12.00kgs / 26.46lb Carton Size 30cm * 50cm * 40cm / 11.81inch * 19.69inch * 15.75inch Loading Container 20GP: 444 cartons * 500 pcs = 222000 pcs40HQ: 1031 cartons * 500 pcs = 515500 pcs

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1. Frequency range: VHF: 136-174 MHz, 245-245.9875 MHz (220-260 MHz); UHF: 400-490 MHz2. Number of channels: 200 channels3. Transmit power: 60 W4. Channel spacing: 25 kHz (wideband), 20 kHz (midband), 12.5 kHz (narrowband) 5. Frequency stability: ±2.5 ppm6. Operating temperature: -20 to 60 degrees Celsius7. Operating voltage: DC 13.8 V +/- 15%8. Size: about 19 x 14.5 x 4.7 cm9. Weight: About 1.2 kgReceiver:1. Sensitivity (12 dB SINAD) wideband/narrowband: ≤0.25 μV / ≤0.35 μV 2. Adjacent channel selectivity (wideband/narrowband): ≥70 dB / ≥60 dB 3. Spurious response (wideband/narrowband): ≥65 dB / ≥60 dB 4. Spurious suppression (wideband/narrowband): ≥70 dB 5. Audio response (wide/narrowband): +1 to -3 dB (0.3–3 kHz) / +1 to 3 dB (0.3–2.55 kHz)6. Electromagnetic interference and noise (wide/narrowband): ≥45 dB / ≥40 dB7. Audio distortion: ≤5% 8. Audio power output: greater than 2W ±10%Transmitter:1. Output power (wideband/narrowband): 60W/25W/10W (VHF), 45W/25W/10W (UHF) 2. Modulation (wideband/narrowband): 16K F3E / 11K F3E 3. Adjacent channel power (wideband/narrowband): ≥70 dB / ≥60 dB 4. Signal-to-noise ratio (wideband/narrowband): ≥40 dB / ≥36 dB 5. Spurious and harmonic distortion (wideband/narrowband): ≥60 dB 6. Audio response (wideband/narrowband): +1 to -3dB (0.3–3kHz) / +1 to -3dB (0.3–2.55kHz) 7. Audio distortion: ≤5%Features:1. The housing is made of eco-friendly PC and polycarbonate, offering high strength, precision, and heat resistance, with reinforced, wear-resistant, and drop-proof construction.2. Strong penetration capability ensures longer communication distances; stable and reliable transmission power combined with high reception sensitivity guarantees long-range communication and signal coverage.3. Features a large LCD screen for clear, intuitive, and convenient display of all information; built-in indicator lights allow for effortless operation even at night.4. 60W high power output, high efficiency, and low energy consumption; high power ensures strong signal penetration5. Equipped with a simple yet sturdy handheld microphone; buttons are clear and durable, offering easy operation, a comfortable grip, and robust durability6. Features a DPS noise reduction system with an ultra-high noise reduction ratio7. Circuit boards are made of aluminum alloy for superior heat dissipation, ensuring stable and high-quality communicationPackage list:1. Main unit x 12. Mounting bracket x 13. Mounting screw kit x 14. Power cord x 15. Handheld microphone x 16. User manual x 1Specification: Package Weight One Package Weight 1.80kgs / 3.98lb One Package Size 35cm * 26cm * 10cm / 13.78inch * 10.24inch * 3.94inch Qty per Carton 5 Carton Weight 10.00kgs / 22.05lb Carton Size 47cm * 35cm * 27cm / 18.5inch * 13.78inch * 10.63inch Loading Container 20GP: 600 cartons * 5 pcs = 3000 pcs40HQ: 1393 cartons * 5 pcs = 6965 pcs

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Feature:1. 5.8 GHz ISM band.2. The transmission range of 1000 feet without any hindrance.3. 8 groups of selectable channels.4. 5.8GHz wireless transmission technology to avoid interference from other wireless devices.5. The display indicates the selected channel.6. Support 1 set of AV signal input/output.7. Supports 1 transmitter and multiple receivers while maintaining the transmitter and receiver settings in the same channel.8. Support any AV output device, VCD, DVD, IPTV, DVR, satellite receiver, CCTV camera digital set-top box, etc.9. Support PAL / NTSC system and stereo audio transmission.10. No need to install any software, no settings, plug and play.Product specifications:1. Type: Wireless.2. Frequency band: 5.8 GHz.3. System: PAL / NTSC.4. Interface: RCA (AV).5. Transmission distance: less than 300m.6. Sensitivity: -90dBm.7. Transmission power: 50mW.8. Shell material: aluminum.9. Power input: 5V / 1000mA.10. Operating temperature: 32-104 degrees Fahrenheit / 0-40 degrees Celsius.11. Storage temperature: -4-140 degrees Fahrenheit / 20-60 degrees Celsius.12. Humidity: 20-90RH.13. Net weight: 560g.14. Product size: 10x10x2.7cm.Packing list:Transmitter x 1AV cable x 1Power adapter x 1Instruction manual x 1Wall-mounted kit x 1Receiver x 2Specification: Package Weight One Package Weight 1.23kgs / 2.70lb One Package Size 29cm * 11.5cm * 11.8cm / 11.42inch * 4.53inch * 4.65inch Qty per Carton 18 Carton Weight 18.80kgs / 41.45lb Carton Size 60cm * 38cm * 38cm / 23.62inch * 14.96inch * 14.96inch Loading Container 20GP: 307 cartons * 18 pcs = 5526 pcs40HQ: 714 cartons * 18 pcs = 12852 pcs

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1. Frequency Range: VHF: 144-146MHz (136-174MHz), UHF: 430-440MHz (400-490MHz), FM: 86.7-108MHz 2. Number of Channels: 200 3. Channel spacing: 25KHz(Wide Band), 12.5KHz (Narrow Band) 5. Phrase-lock step: 2.5KHz, 5Khz, 6.25KHz, 10KHz, 12.5KHz, 15KHz, 20KHz, 25KHz, 30KHz, 50KHz 6. Operating voltage (ordinary): DC 13.8V+/-15% 7. Operating voltage (wide voltage): DC 12-28V 8. Squelch method: Carrier/CTCSS/DCS/5tone/2tone/DTMF 9. Frequency stability: +/-2.5ppm 10. Operating Temperature: -20~+60 degree C 11. Dimensions: 124 (W) x 101(D) x 36 (H)mm 12. Weight: About 0.45Kg Transmitter Part 1. Power Output: (UHF/VHF)Wide Band / Narrow Band: 25W/10W/5W 2. Modulation: Wide Band: 16K x F3E, Narrow Band: 11K x F3E 3. Adjacent Channel Power: Wide Band: >=70dB, Narrow Band: >=60dB 4. Hum & Noise: Wide Band: >=40dB,Narrow Band: >=36dB 5. Spurious Emission: Wide Band: >=60dB, Narrow Band: >=60dB 6. Wide Band: Audio Response: +1~-3dB (0.3~3KHz), Narrow Band: +1~-3dB (0.3~3KHz) 7. Audio Distortion: =<5% Receiver Part 1. Sensitivity (12dBm SINDA): Wide Band: =<0.25uV, Narrow Band: =<0.35uV 2. Adjacent Channel Selectivity: Wide Band: >=70dB, Narrow Band: >=60dB 3. Audio Response: Wide Band: +1~-3dB (0.3~3KHz), Narrow Band: +1~-3dB (0.3~2.55KHz) 4. Noise Ratio: Wide Band: >=45dB, Wide Band: >=40dB 5. Audio distortion: 3% 6. Audio power output: >2W@10%Specification: General Certificate GPSR Package Weight One Package Weight 0.84kgs / 1.86lb One Package Size 20cm * 15cm * 8cm / 7.87inch * 5.91inch * 3.15inch Qty per Carton 20 Carton Weight 17.80kgs / 39.24lb Carton Size 42cm * 32cm * 35cm / 16.54inch * 12.6inch * 13.78inch Loading Container 20GP: 566 cartons * 20 pcs = 11320 pcs40HQ: 1316 cartons * 20 pcs = 26320 pcs

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Features:1. Tiny and ultra lightweight, magnetic design easy to wear2. Precise noise cancellation capture your true sound3. Max support 120m transmission range, and 20ms low-latency4. Charging and storage integrated, auto pairing5. Built-in Stereo/Mono switchable sound track6. Compatible with multiple devices （phone, PC, camera）General1. Model: LM12. Polar Pattern: Omnidirectional3. Wireless Transmission: 2.4G4. Sensitivity: -40dB+2dB5. Transmission Range (LOS): Max: 400ft (120m); Stable: 164ft (50m)6. Transmission Latency: 20ms7. Frequency: 2402-2480MHz8. Frequency Response: 100-16KHz9. Max. SPL (sound pressure level): 110dB10. S/N Ratio: 95dB11. Sampling Rate: 48KHz/16BIT12. Sound Track: Stereo/Mono13. Compatible Device: Smartphone, Camera, PC TX1. Battery Type: Li-ion2. Battery Capacity: 150mAh3. Battery Voltage: 3.7V4. Charing Time: Approx. 2h5. Working Time: Approx. 8h6. Operating Temperature: 0~45℃7. Dimension: 28 x 32 x 16.7mm8. Weight: 10.5g（w/o clip magnet); 12.95g（with clip magnet) RX1. Interface: USB-C, 3.5mm Audio Jack2. Battery Type: Li-ion3. Battery Capacity: 150mAh4. Battery Voltage: 3.7V5. Charing Time: Approx. 2h6. Working Time: 1TX to 1RX about 7.5h, 2TX to 1RX about 6.5h7. Operating Temperature: 0-45 degree C8. Dimension: 37.5 x 32 x 18.6mm9. Weight: 12.8g Charging Case1. Interface: USB-C2. Battery Type: Li-ion3. Battery Capacity: 1100mAh4. Battery Voltage: 3.7V5. Power Required: USB 5V6. Charing Time: Approx. 2h7. Operating Temperature: 0-45 degree C8. Charging Temperature: 0-45 degree C9. Dimension: 85 x 59.3 x 38mm10. Weight: Approx. 83.6g (only for charging case)11. Times for the charging case charges the TX and RX: 2TX and 1RX charge simultaneously, it can be charged more than 2 times with fully charged charging casePackage List:1. TX x 22. RX x 13. Charging Case x 14. Drawstring Bag x 15. 3.5mm TRS Cable x 16. USB-A to USB-C Cable x 17. USB-C to USB-C Cable x 18. 8Pin Adapter x 19. Windscreen x 210. Quick Start Guide x 1Specification: Package Weight One Package Weight 0.23kgs / 0.52lb One Package Size 13cm * 9cm * 7cm / 5.12inch * 3.54inch * 2.76inch Qty per Carton 50 Carton Weight 12.20kgs / 26.90lb Carton Size 44cm * 36cm * 29cm / 17.32inch * 14.17inch * 11.42inch Loading Container 20GP: 580 cartons * 50 pcs = 29000 pcs40HQ: 1347 cartons * 50 pcs = 67350 pcs

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Features1. 50 CTCSS /105 DCS 2. Built-in VOX function 3. Voice prompt 4. PC Programming 5. Emergency alarm, intelligent charging, battery save, low voltage alert, time-out timer, torch light 6. Scrambler, noise reduction circuit 7. Long comminution range: Open ground: 3-5km, Obstacle ground: 1-3kmSpecification: General Model BF-888S Frequency Range UHF 400MHz-470MHz Channel 16 Voltage 3.7V Battery Types Lithium-ion Battery Working Temperature -20C to 60C Walkie Distance (Open) 3-5km Walkie Distance (Barrier) 1-3km Size 115*60*33mm Weight 160g Package Include Package Contents 1 x Walkie Talkie 1 x Rechargeable Battery 1 x Detachable Antenna 1 x Charger Base 1 x Belt-clip 1 x Strap 1 x User Manual Package Weight One Package Weight 0.64kgs / 1.41lb One Package Size 24cm * 18cm * 8cm / 9.45inch * 7.09inch * 3.15inch Qty per Carton 20 Carton Weight 10.00kgs / 22.05lb Carton Size 50cm * 38cm * 42cm / 19.69inch * 14.96inch * 16.54inch Loading Container 20GP: 334 cartons * 20 pcs = 6680 pcs40HQ: 775 cartons * 20 pcs = 15500 pcs

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1. The wireless headset allows the mobile phone up to 10 meters.2. Bike-to-bike intercom for driver and passenger or two separate bikes to 800-1000 meters.3. Call, answer calls, reject calls, hang up calls.4. Receive a phone call automatically.5. Support audio transfer.6. Supports Dialing number.7.Function of FM Radio.Specification: Package Weight One Package Weight 0.34kgs / 0.75lb One Package Size 17cm * 11cm * 5.5cm / 6.69inch * 4.33inch * 2.17inch Qty per Carton 88 Carton Weight 30.00kgs / 66.14lb Carton Size 75cm * 48cm * 24cm / 29.53inch * 18.9inch * 9.45inch Loading Container 20GP: 308 cartons * 88 pcs = 27104 pcs40HQ: 716 cartons * 88 pcs = 63008 pcs

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1. The bracket can be freely rotated 360 degrees, easy to install2. Two kinds of interface design, easy to use3. High conversion efficiency, low power consumption4. Working voltage: 6V5. Working current: 830mA6. Power: 5W7. Interface: USB, Type-C/USB-C8. Waterproof rating: IP669. Size: about 17.3 x 16.3cmSpecification: Package Weight One Package Weight 0.40kgs / 0.89lb One Package Size 20cm * 18cm * 3cm / 7.87inch * 7.09inch * 1.18inch Qty per Carton 74 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 74 pcs = 13098 pcs40HQ: 412 cartons * 74 pcs = 30488 pcs

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