Search results for "school electronics"

1. Dimensions and weight: 207 x 206 x 29mm, 500g. 2. Material: environmentally friendly ABS. 3. Power supply: 2 x AAA or 5 V DC batteries (not included). 4. Strike speed range: 30,31,32 ... 278,279,280. 5. Features: Metronome, drummer trainer integrated multi-function metronome function; Accurately test your own beat beat speed or tap a songs beat function; Count, accurately test your limit beat speed count function; Comprehensive Optimized product design, including headphone front end, external DC power supply; shockproof, non-slip design; easy to use and easy to operate. 6. Make your drums easier to learn and practice, accurately test your percussion speed or song percussion time, professional drummer identification. You can adjust the output to play music with other musicians.Specification: Package Weight One Package Weight 1.09kgs / 2.40lb One Package Size 24cm * 23cm * 4cm / 9.45inch * 9.06inch * 1.57inch Qty per Carton 10 Carton Weight 11.00kgs / 24.25lb Carton Size 50cm * 25cm * 22cm / 19.69inch * 9.84inch * 8.66inch Loading Container 20GP: 969 cartons * 10 pcs = 9690 pcs40HQ: 2251 cartons * 10 pcs = 22510 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 20cm Operating Humidity 10 ~ 80% Reading Display 0.36 inch Cutting Size 32x21mm Size 35x23x20mm Weight 10g Package Weight One Package Weight 0.11kgs / 0.25lb One Package Size 15cm * 8cm * 6cm / 5.91inch * 3.15inch * 2.36inch Qty per Carton 120 Carton Weight 13.50kgs / 29.76lb Carton Size 48cm * 32cm * 32cm / 18.9inch * 12.6inch * 12.6inch Loading Container 20GP: 542 cartons * 120 pcs = 65040 pcs40HQ: 1259 cartons * 120 pcs = 151080 pcs

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1. Equipped with the ESP32-C6 high-performance 32-bit RISC-V processor, with a main frequency of up to 160 MHz2. Supports Wi-Fi 6, Bluetooth 5 and IEEE 802.15.4 (Zigbee 3.0 and Thread) wireless communication, featuring excellent radio performance and an onboard antenna3. Built-in 512KB HP SRAM, 16KB LP SRAM and 320KB ROM, with an external 16MB Flash4. Utilizes the Type-C interface, enhancing user convenience and device compatibility5. Equipped with a 2.16-inch capacitive touch high-definition AMOLED screen, with a resolution of 480 x 480, 16.7M colors, capable of clearly displaying color images6. Built-in CO5300 driver chip and CST9220 capacitive touch chip, communicating via QSPI and I2C interfaces respectively, without occupying excessive interface pin resources7. Built-in QMI8658 six-axis inertial measurement unit (3-axis acceleration, 3-axis gyroscope), capable of detecting motion posture, step counting and other functions8. Built-in PCF85063 RTC chip, connected to the battery through AXP2101, achieving uninterrupted power supply9. Built-in two customizable side buttons, KEY and BOOT, facilitating the development of custom functions using the buttons10. Built-in 3.7V MX1.25 lithium battery charging and discharging interface11. Exports 1 I2C, 1 UART and 1 USB pad, available for external devices and debugging use12. The benefits of using AMOLED screen include efficient power management, support for multiple output voltages, charging and battery management functions, and optimization of battery life13. Using AMOLED screen, one can achieve higher contrast, wider viewing angle, richer colors and faster response, and the body is thin, with low power consumption and flexibility advantagesParameters1. Display panel: AMOLED2. Display resolution: 480 x 480 pixels3. Display brightness: 600cd/square meter4. Communication interface: QSPI5. Touch control: upported6. Display size: 2.16 inches7. Display color: 16.7M8. Contrast ratio: 100000:19. Driving IC: CO530010. Touch IC: CST9220Specification: Package Weight One Package Weight 0.06kgs / 0.13lb One Package Size 8cm * 8cm * 6cm / 3.15inch * 3.15inch * 2.36inch Qty per Carton 144 Carton Weight 9.00kgs / 19.84lb Carton Size 50cm * 38cm * 34cm / 19.69inch * 14.96inch * 13.39inch Loading Container 20GP: 412 cartons * 144 pcs = 59328 pcs40HQ: 958 cartons * 144 pcs = 137952 pcs

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1. The outer shell is made of advanced fireproof and explosion-proof materials, and the interior has leakage protection measures, which is safe and reliable2. In addition to the power saving function, this innovative energy saver also has overheating protection, circuit loss reduction, anti-theft electricity, voltage stabilization, lightning protection, and electrical appliance protection3. By actively monitoring and managing power usage, this energy-saving device helps save energy and reduce carbon footprint, making it an environmentally friendly choice for users4. Extend the service life of electrical appliances. We can see obvious energy-saving effects by using energy savers on air conditioners, washing machines, refrigerators, water pumps, induction cookers, electric kettles and other equipment5. Working voltage: 90-250V6. Frequency: 50-60HZ7. Effective load: 28000W8. Scope of use: both home and shopping malls9. Product size: 58 x 31 x 96mm10. Weight: 100g/pieceSpecification: Package Weight One Package Weight 0.13kgs / 0.30lb One Package Size 12cm * 8cm * 8cm / 4.72inch * 3.15inch * 3.15inch Qty per Carton 100 Carton Weight 14.00kgs / 30.86lb Carton Size 44cm * 36cm * 35cm / 17.32inch * 14.17inch * 13.78inch Loading Container 20GP: 481 cartons * 100 pcs = 48100 pcs40HQ: 1116 cartons * 100 pcs = 111600 pcs

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1. Professional Stage Monitoring Solution: The ER-404 Wireless In-Ear Monitor System is designed for live performances and studio use, featuring multi-channel transmission as a professional monitoring device for bands, vocalists, and hosts.2. Stable Long-Range Transmission: Adopts UHF wireless technology with high-gain antennas, delivering low-latency, high-stability signal transmission up to 80 meters (260ft), ideal for large-scale stages.3. Convenient Bluetooth Connectivity: The transmitter has a built-in Bluetooth module for direct pairing with smartphones, tablets, and other devices, enabling quick audio input and expanding usage scenarios.4. IR Quick Frequency Matching: Supports one-click IR fast matching. After selecting the frequency, the transmitter and receiver can be paired via IR without complex settings, saving time and effort.5. Multi-Receiver Expansion Support: A single transmitter is compatible with multiple or even unlimited receivers, enabling simultaneous monitoring for large teams such as bands and choirs.6. Auto-Scan Anti-Interference: Equipped with auto-scan circuitry supporting 4 channels × 60 selectable frequencies, it automatically selects the optimal channel to reduce signal cuts and dropouts, ensuring stable performances.7. Powerful Audio Performance: The receiver features a built-in headphone amplifier chip that optimizes audio dynamics, delivering clear, full monitoring sound quality and restoring musical details.8. Detachable Monitoring Earphones: Comes with detachable in-ear monitor earphones with a 0.75mm 2-pin connector, supporting cable replacement and upgrades for a secure, comfortable fit with excellent sound isolation.9. Long-Lasting Battery Life: The receiver runs on 2 x AA batteries (not included) with up to 6-8 hours of use, and the batteries can be replaced anytime, eliminating range anxiety during long performances.10. Multi-Scenario Application: Widely used in stage performances, live interviews, large conferences, orchestra performances, live streaming, and recording, adapting to various professional audio needs.Specification: Package Weight One Package Weight 2.91kgs / 6.42lb One Package Size 54cm * 29cm * 8cm / 21.26inch * 11.42inch * 3.15inch Qty per Carton 5 Carton Weight 15.50kgs / 34.17lb Carton Size 56cm * 42cm * 30cm / 22.05inch * 16.54inch * 11.81inch Loading Container 20GP: 377 cartons * 5 pcs = 1885 pcs40HQ: 877 cartons * 5 pcs = 4385 pcs

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1. Power off save, low voltage alarm, timing display, reverse connection protection2. Real-time monitoring, smart chip, precision fine-tuning3. Applicable to various instruments, mobile convenient equipment, medical equipment, electric vehicles, balance vehicles, unicycles, ternary lithium batteries, lead-acid batteries, iron-lithium battery packs, etc.4. Stable and reliable, fast recognition, sensitive response5. Reverse connection does not burn, safe and reliable6. The LCD display works, you can set the type of battery you need to measure7. Waterproof grade: IPX78. Working current: less than or equal to 15mA9. Working air pressure: 80-106 kPa10. Ambient temperature: -10 to 70 degrees Celsius11. Measuring range: 8-72v / 8-100v12. Measurement speed: about 2 seconds/time13. Display mode: LCD screen14. Installation size: 58 x 28mm15. Dimensions: 61.3x33.3x16.2mm16. Weight: about 27gSpecification: Package Weight One Package Weight 0.04kgs / 0.10lb One Package Size 10cm * 5cm * 3cm / 3.94inch * 1.97inch * 1.18inch Qty per Carton 500 Carton Weight 22.00kgs / 48.50lb Carton Size 50cm * 50cm * 44cm / 19.69inch * 19.69inch * 17.32inch Loading Container 20GP: 242 cartons * 500 pcs = 121000 pcs40HQ: 562 cartons * 500 pcs = 281000 pcs

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1. Material: plastic, electronic components2. Applicable scenarios: broadcasting, interview recording, speech, online teaching3. Frequency response: 50Hz-20KHz4. Dynamic range: 117dB5. Signal to noise ratio: 75dB6. Audio cable length: 8 meters / 26.2 feet7. Output connector: 3.5mm class 4 metal plug8. Battery: LR44 button battery x 1 (delivery with battery)9. The microphone has an automatic identification function, which can automatically identify the 3.5mmTRRS and 3.5mmTRS input ports10. Contains cotton windscreen to reduce background noise11. Upgrade the noise processing circuit to provide complete and clear sound when recording12. Support 360-degree omnidirectional pickupSpecification: Package Weight One Package Weight 0.15kgs / 0.32lb One Package Size 14cm * 8cm * 2.5cm / 5.51inch * 3.15inch * 0.98inch Qty per Carton 98 Carton Weight 14.01kgs / 30.90lb Carton Size 30cm * 50cm * 46.7cm / 11.81inch * 19.69inch * 18.39inch Loading Container 20GP: 380 cartons * 98 pcs = 37240 pcs40HQ: 883 cartons * 98 pcs = 86534 pcs

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Overview1. Onboard audio power amplifier LM3862. Audio signal gain up to 2003. Adjustable accuracy4. Signal output indicatorSpecifications1. Mic sensitivity: 52dB2. Frequency range: 50Hz ~ 20KHz3. Power: 3.3V ~ 5.3V4. Mounting holes size: 2.0mmApplications1. Audio amplifier2. Ambient sound detection3. Sound level detection (unable to get exact dB value)How to UseIn the case of working with a MCU:1. VCC: 3.3V ~ 5.3V2. GND: Power supply ground3. AOUT: MCU.IO (analog output)4. DOUT: MCU.IO (digital output)Package Contents1. Sound Sensor x12. 4-pin custom connector jumper wire x1Specification: Package Weight One Package Weight 0.02kgs / 0.03lb One Package Size 5cm * 3cm * 1cm / 1.97inch * 1.18inch * 0.39inch Qty per Carton 6240 Carton Weight 15.00kgs / 33.07lb Carton Size 60cm * 39cm * 40cm / 23.62inch * 15.35inch * 15.75inch Loading Container 20GP: 284 cartons * 6240 pcs = 1772160 pcs40HQ: 661 cartons * 6240 pcs = 4124640 pcs

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1. Compared with traditional electric meters, this product is small and beautiful in appearance, light in weight and easy to install!2. The traditional maximum ammeter is 4 times the rated current. The product is a smart ammeter with strong overload capacity, up to 12 times the basic reference current3. Using LCD digital power measurement, no reset button, to avoid artificial tampering with data!4. Rated current: 5A5. Maximum current: 32A6. Pulse frequency: 1000imp / kwh7. Pulse LED indicates instrument operation, pulse output with optical coupling isolation8. The instrument has multi-function rotation display real voltage, real current, real power, total energy KWH, real frequencySpecification: Package Weight One Package Weight 0.14kgs / 0.31lb One Package Size 15cm * 12cm * 5cm / 5.91inch * 4.72inch * 1.97inch Qty per Carton 194 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 194 pcs = 34338 pcs40HQ: 412 cartons * 194 pcs = 79928 pcs

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1. Resolution: 203DPI2. Printing speed: 152mm/s (6 inches/s)3. Printing width: 108mm (4.25 inches)4. Print length: 1778mm (70 inches)5. Storage: 8MB FLASH MEMORY6. Media type: continuous paper, gap paper, fanfold paper, perforated paper, black mark paper7. Media width: 25.4-11.5mm8. Medium thickness: 0.06-0.25mm9. Clearance/Black mark height: MIN: 2mm10. High-speed printing to improve work efficiency11. Multi-function button + two-color LED light12. Intelligent temperature control print head to prevent damage to the print head13. Product size: 21.5 x 17.8 x 15.5 cmPacking list:-Printer x 1-Power adapter x 1-Power cord x 1-USB cable x 1- label axis x 1-Label bezel x 1Specification: Package Weight One Package Weight 2.40kgs / 5.30lb One Package Size 33cm * 23cm * 20cm / 12.99inch * 9.06inch * 7.87inch Qty per Carton 12 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 12 pcs = 2124 pcs40HQ: 412 cartons * 12 pcs = 4944 pcs

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1. Supports software-controlled backlight brightness2. IPS display panel, excellent display performance, 178-degree viewing angle3. Supports five-point touch; actual touch points depend on the software system4. Tempered glass panel, hardness up to 6H5. Fully laminated screen, high clarity, dustproof6. Default display is portrait mode, resolution is 720 x 1280 (HxV), landscape mode can be configured via software settings7. Supports Raspberry Pi OS, five-point touch; ESP32-P4 supports LVGL custom screen, five-point touch; RK3506 supports Buildroot, Ubuntu, etc., five-point touch; RK3576 supports Buildroot, Debian, Ubuntu, Android, etc., five-point touch8. Note: The version with a case only supports Raspberry Pi 5Standard version:1. 5-DSI-TOUCH-B touchscreen x 12. MIPI-DSI-Cable-12cm x 13. MX1.25 2PIN to 2.54 3PIN cable x 14. FFC cable 22PIN 200mm (reverse direction) x 15. FFC cable 22PIN 100mm (reverse direction) x 16. MX1.25 2PIN to MX1.25 4PIN approx. 150mm x 17. Copper pillar case x 1Casing version packaging:1. 5-DSI-TOUCH-B touchscreen x 12. Black casing x 13. MIPI-DSI-Cable-12cm x 14. MX1.25 2PIN to 2.54 3PIN cable x 15. FFC cable 22PIN 200mm (reverse direction) x 16. 7. FFC cable 22PIN 100mm (reverse direction) x 18. MX1.25 2PIN to MX1.25 4PIN approx. 150mm x 19. DSI-Cable-12cm-C x 110. Silicone button x 111. Copper pillar bag x 112. Screw bag x 1Specification: Package Weight One Package Weight 0.50kgs / 1.11lb One Package Size 17cm * 11cm * 4cm / 6.69inch * 4.33inch * 1.57inch Qty per Carton 48 Carton Weight 25.10kgs / 55.34lb Carton Size 36cm * 35cm * 34cm / 14.17inch * 13.78inch * 13.39inch Loading Container 20GP: 622 cartons * 48 pcs = 29856 pcs40HQ: 1445 cartons * 48 pcs = 69360 pcs

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Product Usage: 1. Pedal, command, life-saving 2. Military training 3. Sports competition and training 4. Pigeon and pet training Product parameters: 1. Battery model: CR2032 x4 2. Decibel: Maximum 125DB +/- percent 5 3. Product size: 138x385x33.5mmSpecification: Package Weight One Package Weight 0.11kgs / 0.24lb One Package Size 15cm * 4.5cm * 4.5cm / 5.91inch * 1.77inch * 1.77inch Qty per Carton 50 Carton Weight 7.50kgs / 16.53lb Carton Size 30cm * 30cm * 20cm / 11.81inch * 11.81inch * 7.87inch Loading Container 20GP: 1481 cartons * 50 pcs = 74050 pcs40HQ: 3439 cartons * 50 pcs = 171950 pcs

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