Search results for "school electronics"

1. Dedicated interface for sound card: interfaces for microphones, musical instruments, mobile phones, etc. adapted to small and medium-sized diaphragms2. Smart compatible mobile phone/computer live broadcast3. DSP chip professional sound pickup and noise reduction4. Intelligent dodge + elimination of original sound, born for live K song5. Cool breathing light, with Bluetooth function, wireless connection is more efficient6. 6 large adjustment knobs, finely adjust the sound input and output7. Preset 8 interesting modes: electronic tone/dodge/changeable/monitor/chat/call microphone/sing/snap original sound8. 16 kinds of live broadcast special effects, easy and funny live broadcast roomSpecification: Package Weight One Package Weight 2.00kgs / 4.42lb One Package Size 42cm * 24cm * 8cm / 16.54inch * 9.45inch * 3.15inch Qty per Carton 14 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 14 pcs = 2478 pcs40HQ: 412 cartons * 14 pcs = 5768 pcs

Read more less

1) Save electric power resources 2) Protect the environment 3) Surge protection 4) Improve the power factor 5) Stabilize electrical current 6) Protect the appliances and prolong their life 7) Easy to use, maintenance free 8) Fully compliant with safety standards 9) Model: SD-001 10) Rated Voltage: 90V-250V 11) Rated Frequency: 50Hz-60Hz 12) Useful Load: 18000W 13) Chip control system, adjust the output voltage to a reasonable electrical equipment. 14) Compensation coil winding work to bring the magnetic field generated reactive power, improve power factor of electrical equipment. 15) Saving around 20-35%Specification: Package Weight One Package Weight 0.16kgs / 0.35lb One Package Size 13.5cm * 8.5cm * 8.5cm / 5.31inch * 3.35inch * 3.35inch Qty per Carton 20 Carton Weight 3.88kgs / 8.55lb Carton Size 47cm * 31cm * 19cm / 18.5inch * 12.2inch * 7.48inch Loading Container 20GP: 963 cartons * 20 pcs = 19260 pcs40HQ: 2236 cartons * 20 pcs = 44720 pcs

Read more less

1. Camera input: expands two CSI interfaces for AI applications such as facial recognition, road sign detection, line recognition, and license plate recognition2. 7 USB Ports: 4 Type-A + 1 Type-C + 2 USB 2.0 ribbon cables for diverse peripherals. USB 3.2 Gen 2 port supports up to 10Gbps data transfer; Type-C port enables system flashing3. 4K HD Output via DisplayPort interface4. Color-coded 40-pin GPIO interface for expanding I2C, SPI, I2S, UART, and GPIO resources5. Flexible storage and wireless expansion: Base board features two M.2 Key M slots for SSDs and an M.2 Key E interface for wireless network cards, minimizing cable clutter6. Size: about 10.3 x 9.05 cmSpecification: Package Weight One Package Weight 0.09kgs / 0.21lb One Package Size 12cm * 12cm * 2cm / 4.72inch * 4.72inch * 0.79inch Qty per Carton 210 Carton Weight 20.00kgs / 44.09lb Carton Size 50cm * 38cm * 35cm / 19.69inch * 14.96inch * 13.78inch Loading Container 20GP: 401 cartons * 210 pcs = 84210 pcs40HQ: 930 cartons * 210 pcs = 195300 pcs

Read more less

Description1. The ST-LINK/V2 is an in-circuit debugger and programmer for the STM8 and STM32 microcontroller families. The single wire interface module (SWIM) and JTAG/serial wire debugging (SWD) interfaces are used to communicate with any STM8 or STM32 microcontroller located on an application board.2. STM8 applications use the USB full speed interface to communicate with STMicroelectronics ST Visual Develop (STVD) or ST Visual Program (STVP) software.3. STM32 applications use the USB full speed interface to communicate with Atollic, IAR, Keil or TASKING integrated development environments.Key Features1. 5V power supplied by a USB connector2. USB 2.0 full speed compatible interface3. USB standard A to mini B cable4. SWIM specific features5. 1.65 V to 5.5 V application voltage supported on SWIM interface6. SWIM low-speed and high-speed modes supported7. SWIM programming speed rate: 9.7 Kbytes/s in low speed and 12.8 Kbytes/s in high speed8. SWIM cable for connection to the application via an ERNI standard vertical (ref: 284697 or 214017) or horizontal (ref: 214012) connector9. SWIM cable for connection to the application via a pin header or a 2.54 mm pitch connector10. JTAG specific features11. 1.65 V to 3.6 V application voltage supported on the JTAG interface and 5 V tolerant inputs12. JTAG cable for connection to a standard JTAG 20-pin pitch 2.54 mm connector13. Direct firmware update feature supported (DFU)14. Status LED which blinks during communication with the PC15. Operating temperature 0 to 50 °CApplication ExampleConnecting the PC and STM8/STM32 application board through ST-LINK/V2 to establish hardware connectionConnection with STM8 applicationsThe ST-LINK/V2 should be connected to the STM8 application via the SWIM cable. Two SWIM cables are delivered with the product:- SWIM flat ribbon with a standard ERNI connector at one end and a 4-pin connector at the other end- SWIM flat ribbon ended with a 4-pin, 2.54 mm, low-cost connector on two sidesConnection with STM32 applicationsFor STM32 developments the ST-LINK/V2 must be connected to the application using the standard 20-pin female-female JTAG flat ribbon provided.ST-LINK/V2 StatusThe LED labeled COM on top of the ST-LINK/V2 shows the ST-LINK/V2 status (whatever the connection type). When the:1. LED is blinking RED: the first USB enumeration with the PC is taking place. If it keeps blinking RED, maybe the USB driver is NOT found.2. LED is RED: communication between ST-LINK/V2 and the PC is established (end of enumeration).3. LED is blinking GREEN/RED: data are being exchanged between the target and the PC.4. LED is GREEN: the last communication has been successful.5. LED is ORANGE: ST-LINK/V2 communication with the target has failed.Specification: Package Weight One Package Weight 0.10kgs / 0.23lb One Package Size 16cm * 9cm * 5cm / 6.3inch * 3.54inch * 1.97inch Qty per Carton 96 Carton Weight 9.60kgs / 21.16lb Carton Size 48cm * 36cm * 40cm / 18.9inch * 14.17inch * 15.75inch Loading Container 20GP: 385 cartons * 96 pcs = 36960 pcs40HQ: 895 cartons * 96 pcs = 85920 pcs

Read more less

1. Frequency range: 286-868MHZ2. Wireless transmission distance: 50-100m3. Working voltage: DC3V (a built-in 2032 battery)4. Working current: 10mA@3V5. Radiation power: 10mW@3V6. Encoder type: fixed code, learning code, partial rolling code7. Mainly used for remote control of some cars. Remote control electric retractable doors, lifts, remote control barriers, remote control rolling doors, garage doors, sliding doors, remote control LED lights, remote control fireworks igniters, remote control passenger car doors, anti-theft alarms, electric Door alarm, MP3 motorcycle anti-theft alarm, etc.8. Copyable chips: 2260 (all manufacturers), 2262 (all manufacturers), PT2264 (all manufacturers), 5326 (all manufacturers), 527 (all manufacturers), 1527 (all manufacturers), 2240 (all manufacturers), HT6026 , HT6012, HT6014, HT600, HT680, HT6010, HT6207, HT640, HT6P12E, HT6P20D, 12L-4SC, PT2292, 12L4SC, SC5262, PLC168, NF9420116, UM3750AM, SMC918, SMC908, 1416, 52119. Size: 62x37x14mm10. Weight: about 21gSpecification: Package Weight One Package Weight 0.04kgs / 0.09lb One Package Size 8cm * 5cm * 3cm / 3.15inch * 1.97inch * 1.18inch Qty per Carton 320 Carton Weight 12.70kgs / 28.00lb Carton Size 32cm * 40cm * 30cm / 12.6inch * 15.75inch * 11.81inch Loading Container 20GP: 694 cartons * 320 pcs = 222080 pcs40HQ: 1612 cartons * 320 pcs = 515840 pcs

Read more less

1. Comes with charging compartment wireless lavalier microphone, no need for cumbersome operation, compact and portable2. 2.4G wireless technology, reverberation sound effect, double noise reduction, wireless live broadcast with goods, omnidirectional radio, high-definition sound quality, 50-meter barrier-free transmission, 8h long battery life, powerful compatibility3. Compatible with mainstream devices on the market, supporting mobile phones/computers/cameras/sound cards/video cameras and applicable to major mainstream APP software4. 2.4G wireless technology, ready to use, automatic frequency pairing, true wireless is not bound, automatic pairing when turned on, no other operations are required, and the operation is simple5. The microphone can be fully charged for 6 hours, and the charging box can fully charge the microphone 8 times6. Support recording while charging the phone7. Clear and noise-free, low latency, plug and play8. Intelligent noise reduction, omnidirectional and clear sound pickup, compatible with mobile phones/cameras, etc.9. Start up immediately after opening the box, automatic code matching, plug and play in 1 second to connect10. The lavalier has no pressure, is more stable and does not fall off, and is more convenient to carry11. Automatic calculation of active noise reduction to achieve noise reduction effects for different noise environments12. High-sensitivity microphone core, 360-degree omni-directional high-definition pickup, strong anti-interference ability and effective identification of the original sound, and can still record clearly in noisy environments13. Built-in professional receiving chip, high sensitivity and stable transmission14. Recording while charging, fine matte surfaceparameter:1. Material: ABS+PC2. Sensitivity: -26DB3. Signal-to-noise ratio: greater than or equal to 90 decibels4. Battery capacity: 350mAh5. Frequency response: 20Hz-25KHz6. Wireless version: 2.4GHz7. Bluetooth version: 5.08. Charging time: about 2 hours9. Working hours: about 12 hours10. Charging interface: Type-c/USB-c11. Receiving distance: 20 meters12. Rated input: DC5V 500mA13. Pointing type: omnidirectional14. Packing list: microphone, charging cable, manual15. Size: 85 x 63 x 28mmSpecification: Package Weight One Package Weight 0.16kgs / 0.36lb One Package Size 15cm * 3cm * 7cm / 5.91inch * 1.18inch * 2.76inch Qty per Carton 200 Carton Weight 31.80kgs / 70.11lb Carton Size 60cm * 32cm * 35cm / 23.62inch * 12.6inch * 13.78inch Loading Container 20GP: 396 cartons * 200 pcs = 79200 pcs40HQ: 921 cartons * 200 pcs = 184200 pcs

Read more less

1. Frequency range:- AM: 522-1620KHZ(9KHZ), 520-1710KHZ(10KHZ)- FM: 76-108MHZ- AIR: 118-138MHZ2. Sensitivity: AM: within 20mV/m, FM: 8Uv, AIR: 2uV3. Lithium battery: 3.7V 400mAh4. External power supply: DC 5V5. Channel selection method: manual, memory, automatic, automatic search and storage of radio stations6. Function: digital display, automatic shutdown7. Number of radio stations: 1208. Signal to noise ratio: 48dB9. Encoding chip type: DSP10. Material: ABS11. Channel: two-channel12. Packing list: radio x1, stereo earbuds x1, USB charging cable x1, lanyard x1, operation manual x1, storage bag x113. External earplugs: 3.5mm/18 ohms x214. Size: about 9x3.9x0.7cm15. Weight: about 31 gramsFeatures:1. Mini size, can be put in the pocket, can be hung on the chest, easy to carry2. High-sensitivity reception, stable reception of AIR/FM/AM bands3. Large-screen LCD digital display (size: about 28.5x28.5mm), which can display the audio frequency point, volume, band mode, time, battery symbol, charging symbol4. The LCD is designed with orange backlight, which is convenient for operation at night5. The chip has a large capacity, which can store 120 radio stations (FM band: 50, AM band: 20, AIR band: 50), and the machine has a memory6. Two radio storage methods, automatic/manual storage7. A variety of search methods, manual/automatic/automatic search8. Automatic shutdown function can be set for 90/80/70/60/50/40/30/20/10 minutes9. Hours can be selected: 12 hours or 24 hours10. Design lock key to avoid misoperation11. The medium wave step value is 9KHZ/10KHZ, which can be adjusted according to the needsSpecification: Package Weight One Package Weight 0.15kgs / 0.33lb One Package Size 12cm * 6cm * 1.5cm / 4.72inch * 2.36inch * 0.59inch Qty per Carton 242 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 242 pcs = 42834 pcs40HQ: 412 cartons * 242 pcs = 99704 pcs

Read more less

Features: 1. Dual-function anti-burn multimeter, smart test pen, fully automatic 2. Sound and light alarm, two-color display 3. Easy detection of LIVE zero firewire jack line 4. Automatic identification, live line/zero line distinction, breakpoint detection, sound and light alarm, on-off beep, automatic shutdown, NCV voltage detection, replaceable test leads, flashlight, etc. 5. Directly measure AC and DC voltage and resistance on and off when power on, no need to shift gears 6. Non-contact zero-fire judgment, insulation operation, safety check 7. High-brightness LED, powerful wick, high-brightness output, high-transmittance reflector, using anti-reflection tempered lens, large-scale spot coverage 8. Extremely fast measurement, intelligent identification 9. High sensitivity mode, top induction, identify dangerous voltage signals Parameter: 1. Range: 0-500V 2. Resistance: 10 megohms 3. Voltage frequency: 1000Hz 4. Power supply: 2 AA batteries (not included in shipment) 5. Automatic shutdown: 5 minutes 6. On-off buzzer: the measured resistance is less than 30 ohms, the buzzer sounds 7. Non-contact voltage detection alarm: 6-1000V AC voltage 8. Storage temperature: -10 to 60 degrees Celsius 9. Working temperature: 0-40 degrees Celsius 10. Dimensions: 12.7 x 4.2 x 2.5CM 11. Net weight: 67g Packing list: -.1 x host -.1 x Chinese and English dual instruction manual -.1 x test lead -.1 x screwdriver -.1 x boxSpecification: Package Weight One Package Weight 0.14kgs / 0.31lb One Package Size 16.5cm * 7.3cm * 3.8cm / 6.5inch * 2.87inch * 1.5inch Qty per Carton 80 Carton Weight 12.50kgs / 27.56lb Carton Size 41cm * 35cm * 31cm / 16.14inch * 13.78inch * 12.2inch Loading Container 20GP: 599 cartons * 80 pcs = 47920 pcs40HQ: 1391 cartons * 80 pcs = 111280 pcs

Read more less

1. Three-in-one detection: electric field/magnetic field/nuclear radiation monitoring. One device safeguards your environmental safety2. Geiger-Müller tube significantly enhances sensitivity for detecting radioactive radiation compared to short tubes3. Three interfaces for flexible switching: Professional Mode provides clear insights into current environmental conditions; Quick View Mode displays readings instantly, while Curve Mode tracks radiation fluctuations over time4. Dual-theme display settings ensure easy radiation reading visibility regardless of ambient lighting conditions5. Customizable alarm thresholds with triple alerts: audible/visual/vibration alarms deliver immediate danger notifications6. Convenient Type-C charging with a 1500mAh high-capacity battery for extended standby time, ensuring long-lasting safety protection7. Compact and portable design for easy carrying8. Intuitive rotary knob for simple operation9. Real-time curve recording with 50 alarm event storage. Switch to curve mode to monitor value changes live, while storing up to 50 exceedance alerts for post-event reviewParameters1. Screen: 2.4-inch color display2. Backlight: adjustable brightness3. Power supply: Type-C (5V/1A)4. Battery capacity: 1500mAh5. Language: Chinese, English6. Detected radiation types: ionizing radiation (γ-rays, etc.)7. Detector: energy-compensated GM tube (Geiger counter)8. Current dose rate: 0.00-10000μSv/h (10mSv/h)9. Cumulative dose equivalent: 0.00μSv-500.0mSv10. Sensitivity: 80 counts per minute per microSievert11. Alarm modes: light, vibration, sound12. Size: about 13.8 x 6.3 x 3.2 cm13. Weight: about 141 gSpecification: Package Weight One Package Weight 0.23kgs / 0.52lb One Package Size 20cm * 10cm * 5cm / 7.87inch * 3.94inch * 1.97inch Qty per Carton 42 Carton Weight 11.00kgs / 24.25lb Carton Size 42cm * 37cm * 32cm / 16.54inch * 14.57inch * 12.6inch Loading Container 20GP: 536 cartons * 42 pcs = 22512 pcs40HQ: 1244 cartons * 42 pcs = 52248 pcs

Read more less

1. Flexible LED Matrix Panel: Bendable and adaptable design easily conforms to curved surfaces for versatile installation.2. Ultra-Thin & Lightweight Construction: Slim profile saves space while maintaining a clean and modern appearance.3. Waterproof Design: Durable waterproof structure suitable for both indoor and outdoor applications.4. Smart APP Control: Connect via smartphone app to edit text, graphics, animations, and advertising messages anytime.5. DIY Custom Display: Create personalized text, images, doodles, GIF animations, and scrolling messages with ease.6. RGB Multi-Color Effects: Supports vibrant color combinations and dynamic lighting modes for eye-catching displays.7. Remote & APP Operation: Convenient dual-control system via remote controller or mobile application.8. Wide Range of Applications: Ideal for vehicle rear windows, storefront advertising, exhibitions, bars, cafés, events, and promotional displays.9. Screen size: 1762 x 192mmSpecification: Package Weight One Package Weight 2.00kgs / 4.42lb One Package Size 23cm * 15cm * 15cm / 9.06inch * 5.91inch * 5.91inch Qty per Carton 8 Carton Weight 17.00kgs / 37.48lb Carton Size 48cm * 32cm * 32cm / 18.9inch * 12.6inch * 12.6inch Loading Container 20GP: 542 cartons * 8 pcs = 4336 pcs40HQ: 1259 cartons * 8 pcs = 10072 pcs

Read more less

1. Contains 9 sets of power outage saving functions.2. Temporarily store current capacity and energy when power is off.3. Reopen the opportunity to accumulate the current capacity and energy used.4. Manual removal if no accumulation is required.5. Voltage current and capacity display on the same LCD screen, no need for cumbersome operations, only need to connect to the USB interface, you can monitor the phone’s charging status in real time.6. Intelligently memory charging capacity, can save the mAH input from 9 sets of charging devices after power off. Easy to view and check whether the charging device’s capacitance is true.7. U disk current detection, the working current of the u disk is between 50-100mA, when is exceeds 100mA, the u disk may be faulty.8. USB interface voltage detection, the external voltage of the USB interface on the computer is 5V+/-5%, the output current is relatively constant, generally 500mA, and the notebook computer only has 100mA.Specifications:1. Material: ABS2. Color: White, Black3. Current: 0-5A4. Voltage: 4-30V5. Timing: 0-99 hours6. Power: 0-150W7. Capacity: 0-999999mAh8. Inner temperature: 0-80 degree C9. Divide into groups: 0-9 group10. Charging resistance: 0-999.9ohms11. Positive voltage: 0-10V12. Negative voltage: 0-10V13. Item size: 56.6 x 24.7 x 11.2mm14. Item weight: 13.9g15. Package size: 14.7 x 9.4 x 1.2cm/5.78*3.70*0.47in16. Package weight: 17.3gSpecification: Package Weight One Package Weight 0.03kgs / 0.06lb One Package Size 15cm * 10cm * 1.5cm / 5.91inch * 3.94inch * 0.59inch Qty per Carton 200 Carton Weight 6.00kgs / 13.23lb Carton Size 52cm * 32cm * 32cm / 20.47inch * 12.6inch * 12.6inch Loading Container 20GP: 500 cartons * 200 pcs = 100000 pcs40HQ: 1162 cartons * 200 pcs = 232400 pcs

Read more less

1. LCD display for easy and clear reading. 2. Time setting is including hour, minute and week. 3. Easily programmable for up to 10 different on/off settings. 4. Providing 16-combination of daily-programs. 5. With summer time change-over. 6. Random function for security lights. 7. 12/24 hours changeable. 8. Built-in rechargeable battery for memorizing the program. 9. High accuracy and strong anti-interference.Specification: General Material Plastic, Metal Input Voltage AC 120V Operating Temperature -10 ~ 40 Degrees Celsius Size 13.5*7.3*6cm Weight 160g Package Weight One Package Weight 0.20kgs / 0.43lb One Package Size 14.5cm * 8.3cm * 6.5cm / 5.71inch * 3.27inch * 2.56inch Qty per Carton 60 Carton Weight 12.90kgs / 28.44lb Carton Size 45cm * 40cm * 30cm / 17.72inch * 15.75inch * 11.81inch Loading Container 20GP: 493 cartons * 60 pcs = 29580 pcs40HQ: 1146 cartons * 60 pcs = 68760 pcs

Read more less