Search results for "school electronics"

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, no need external power, measure range: 4.5V ~ 30V. 7. Wide voltage to work, red measure min voltage 2.5V, safe load voltage max 40V, over 40V, maybe damaged. 8. 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 0-100V Input impedance >50Kohm Operating Temperature -10 ~ 65 Degree Celsius Cable Length 20cm Operating Humidity 10 ~ 80% Reading Display 0.56 inch Cutting Size 45.5x25.5mm Size 48x29x22mm Weight 16g Package Weight One Package Weight 0.17kgs / 0.38lb One Package Size 18cm * 10cm * 7cm / 7.09inch * 3.94inch * 2.76inch Qty per Carton 80 Carton Weight 14.50kgs / 31.97lb Carton Size 52cm * 37cm * 36cm / 20.47inch * 14.57inch * 14.17inch Loading Container 20GP: 385 cartons * 80 pcs = 30800 pcs40HQ: 893 cartons * 80 pcs = 71440 pcs

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Parameter1. CPU: Amlogic S905X3 64-bit quad core ARM® Cortex™ A55 CPU 2. GPU: G31™ MP2 GPU processor 3. WiFi: IEEE 802.11 a/b/g/n/ac ; 2.4G / 5G 4. Bluetooth: BT ; Support Voice Remote 5. Power: DC 5V/2A6. OS: Android 9.0 7. Specification: 2GB+16GBI/O1. 1xHDMI: HDMI 2.1 ,Support HDMI CEC, Dynamic HDR and and 8Kx4K@24 max resolution output 2. 1xAV OUT: 480i/576i standard definition output 3. 2xUSB: 1 * USB 3.0 ; 1*USB 2.0 4. 1xIR Reciver: Remote Reciver Connect 5. 1xRJ45: Ethernet Interface;Support 10/100M/1000M 6. 1xTF CARD: Support 2GB/16GB Appliactions1. Online: Browse all video websites,support Netflix,Hulu,Flixster, Youtube, etc. 2. Apps: Apps download freely form android market、amazon app store etc. 3. Medium: Local Media playback,Support HDD, U Disck ,TF Card . 4. Talk online: Support SKYPE video call ,MSN , facebook ,twitter ,QQ etc 5. Others: Support Email,office suit etc.6. Support DLNA function 7. Support 2.4G wireless mouse/keyboard 8. Image: HD JPEG、BMP、GIF、PNG、TIF 9. Language: English French German Spanish Italian etc multilateral languages Accessories 1. HDMI cable x1 2. IR Remote x1 3. User Manual x1 4. Package box x1 5. Power adapter x1Specification: Package Weight One Package Weight 0.42kgs / 0.92lb One Package Size 21cm * 15cm * 5cm / 8.27inch * 5.91inch * 1.97inch Qty per Carton 20 Carton Weight 10.50kgs / 23.15lb Carton Size 23cm * 32cm * 52cm / 9.06inch * 12.6inch * 20.47inch Loading Container 20GP: 696 cartons * 20 pcs = 13920 pcs40HQ: 1617 cartons * 20 pcs = 32340 pcs

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1) 40X handheld exclamation mark type magnifier 2) With high brightness, two LED lamps can make the magnifier clearer 3) Adopt handhold handle to conform to ergonomics design, ensure softer and more comfortable hand feeling 4) With arc shaped switch pushing board to conforms to finger shape 5) Comes with PU case for good protection 6) Apply to offices, hospitals, schools, instrument evaluation, printing, home living use 7) Powered by 3 x AAA batteries (Batteries not included) 8) Size: 118x30x22mm 9) Package Contents: - 1 x Magnifier - 1 x User Manual - 1 x PU CaseSpecification: Package Weight One Package Weight 0.07kgs / 0.15lb One Package Size 13cm * 3.8cm * 3.8cm / 5.12inch * 1.5inch * 1.5inch Qty per Carton 160 Carton Weight 9.60kgs / 21.16lb Carton Size 38cm * 32cm * 26cm / 14.96inch * 12.6inch * 10.24inch Loading Container 20GP: 843 cartons * 160 pcs = 134880 pcs40HQ: 1958 cartons * 160 pcs = 313280 pcs

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1. Based on the 40-pin GPIO interface of Raspberry Pi, suitable for Raspberry Pi series motherboards2. Utilizing the DA7212 professional stereo codec chip, controlled via I2C interface and transmitting audio through I2S interface3. Built-in standard 3.5mm headphone jack, allowing music playback through an external headphone4. Built-in AUX input interface, facilitating the expansion connection of other devices5. Built-in speaker terminals and PH2.0 dual-channel speaker interface, supporting multiple types of interfaces for more versatile usage scenarios6. Built-in dual microphones, enabling recording without the need for additional device connections7. Built-in custom function keys and custom function indicator lights8. Supports the highest sampling frequency of 96KHz9. Supports the highest resolution of 24-bitParameters1. Audio codec chip: DA72122. Supply voltage: 5V3. Logic voltage: 3.3V4. Control interface: I2C5. Audio interface: I2S6. DAC signal-to-noise ratio: 100dB7. ADC signal-to-noise ratio: 90dB8. Headphone driver: 160mW (16 ohms, 5V)9. Speaker driver: 2.6W per channel (4 ohms, BTL)Specification: Package Weight One Package Weight 0.19kgs / 0.42lb One Package Size 9cm * 5cm * 3cm / 3.54inch * 1.97inch * 1.18inch Qty per Carton 360 Carton Weight 68.00kgs / 149.91lb Carton Size 47cm * 38cm * 32cm / 18.5inch * 14.96inch * 12.6inch Loading Container 20GP: 466 cartons * 360 pcs = 167760 pcs40HQ: 1083 cartons * 360 pcs = 389880 pcs

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1. Suitable voltage DC3.7-13V2. Current adjustment 0.15A-3A, continuously adjustable3. The continuous discharge power is 15W, that is, the discharge current is about 1A at 13V, and the discharge current is 3A at 5V4. The fan starts and stops intelligently to control the temperature around 40 degrees5. USB positive and negative can lead to a wider range of applications separatelySpecification: Package Weight One Package Weight 0.04kgs / 0.10lb One Package Size 15cm * 12cm * 5cm / 5.91inch * 4.72inch * 1.97inch 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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About This Product1. 12-inch LED screen digital photo frame with 1280*800 pixels resolution 2. 16MB internal memory + 32GB external memory (support SD U-disk) 3. Support Audio Player, Video Player, Clock, CalendarSpecification: General Capacity 16MB External Memory SD card up to 32GB (not included) Display Size 12 inch Display Types LED Aspect Ratio 16:9 Resolution 1280 x 800 Brightness 250cd/m2 Power 12V/1000mA, 100V-240V Adapter AC input AC 100-240V 50/60Hz Interfaces USB 2.0 3.5mm Earphone Port DC Port Supporting Languages English, Simple Chinese Media Formats Video Format MPG, MPEG, RMVB, MKV, FLV, AVI, RM, VOB, MP4 Audio Format MP3 Picture Format JPEG, JPG Dimensions Size 30.5*20.5*2.5cm Package Include Package Contents 1 x Digital Photo Frame 1 x Charger 1 x Remote Controller 1 x Holder 1 x Manual Package Weight One Package Weight 1.20kgs / 2.65lb One Package Size 35cm * 31cm * 8cm / 13.78inch * 12.2inch * 3.15inch Qty per Carton 6 Carton Weight 7.00kgs / 15.43lb Carton Size 50cm * 37cm * 33cm / 19.69inch * 14.57inch * 12.99inch Loading Container 20GP: 436 cartons * 6 pcs = 2616 pcs40HQ: 1014 cartons * 6 pcs = 6084 pcs

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Product Description Hardware Specifications: 1. Main chip: ESP32 2. Module: ESP32-WROVER-B,SIM7000G 3. Interface:USB,SD Card,Solar Input interface 4. Flash Memory: 4M Flash / 8M PSRAM 5. Button: Reset,Power switch 6. USB to TTL: CP2104 7. Car Clock: 40MHz 8. SIM Card Size: Nano SIM Card 9. SIM Antenna 10. GPS Antenna 11. Operating Temperature Range: -40-85 degrees 12. Product Size: 111mm x 37mm x 20mm 13. Product Weight: 50g Power Specifications: 1. Working Voltage: 5V input 2. Solar input voltage range???4.4-6V 3. Working Curent: About 200mA 4. Charging Current: 780mA 5. Battery Model: 18650 6. Battery Holder Model: 18650 battery holder 7. JST Connector: 2pin 2mm 8. USB: TYPE-C 3.0 Wi-Fi: 1. Standard: FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC 2. Protocol: 802.11 b/g/n(802.11n???speed up to150Mbps)A-MPDU and A-MSDU polymerization???support 0.4??S Protection interval 3. Frequency: range 2.4GHz~2.5GHz(2400M~2483.5M) 4. Transmit Power: 22dBm 5. Communication distance: 300m Bluetooth: 1. Protocol meet Bluetooth : v4.2BR/EDR and BLE standard 2. Radio Frequency : with -97dBm sensitivity NZIF receiver Class-1, Class-2&Class-3 emitter AFH 3. Audio Frequency : CVSD&SBC audio frequency Software Specification: 1. Wi-Fi Mode : Station/SoftAP/SoftAP+Station/P2P 2. Security Mechanism : WPA/WPA2/WPA2-Enterprise/WPS 3. Encryption Type : AES/RSA/ECC/SHA 4. Firmware Upgrade :UART download/OTA???Through network/host to download and write firmware??? 5. Software Development : Support cloud server development /SDK for user firmware development 6. Networking Protocol : IPV4, IPV6, SSL, TCP/UDP/HTTP/FTP/MQTT 7. User Configuration : AT + Instruction set, cloud server, Android/iOS APP 8. OS : FreeRTOS Version update function: 1. The batterys positive and negative poles are connected to the wrong protection, overcharge and over discharge protection 2. GPS power control, reduce power consumption, the lowest reaches 300uA when sleeping 3. Replacement of ordinary charging IC with solar charging ICSpecification: Package Weight One Package Weight 0.08kgs / 0.17lb One Package Size 11cm * 11cm * 3cm / 4.33inch * 4.33inch * 1.18inch Qty per Carton 100 Carton Weight 7.50kgs / 16.53lb Carton Size 57cm * 32cm * 24cm / 22.44inch * 12.6inch * 9.45inch Loading Container 20GP: 609 cartons * 100 pcs = 60900 pcs40HQ: 1414 cartons * 100 pcs = 141400 pcs

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1. High-performance, highly integrated microcontroller development board2. Features a compact form factor with an onboard 4-inch high-definition IPS screen, RTC, six-axis sensor (three-axis accelerometer and three-axis gyroscope), and Micro SD card slot, facilitating development and integration into products.3. Utilizes the Raspberry Pi-designed RP2350B microcontroller chip.4. Unique dual-core, dual-architecture design, equipped with a dual-core ARM Cortex-M33 processor and a dual-core Hazard3 RISC-V processor, both running at up to 150MHz, allowing users to flexibly switch between the two architectures.5. Built-in 520KB SRAM and 16MB on-chip Flash, with a reserved PSRAM interface.6. Uses a Type-C interface, eliminating concerns about correct plug orientation.7. Onboard 4-inch LCD screen with 480 x 480 resolution and 65K colors, capable of clearly displaying color images.8. Onboard peripherals include CAN, RS485, I2C interfaces, IMU, RTC, and a Micro SD card slot.9. Onboard 3.7V MX1.25 lithium battery charging and discharging interface.10. USB 1.1 host and device support, supporting low-power sleep and hibernation modes.11. Can be recognized as a mass storage device via USB for drag-and-drop program downloading.12. Accurate on-chip clock and timers.13. 12 programmable I/O (PIO) state machines for custom peripheral support.14. More expansion devices can be connected via CAN, RS485, and I2C interfaces.15. Equipped with two types of wiring terminals, allowing for bottom or back wiring options, facilitating integration into various applications such as rail mounting or embedded systems.16. Dimensions: 74.66 x 76.54 mmSpecification: Package Weight One Package Weight 0.10kgs / 0.23lb One Package Size 11cm * 11cm * 6cm / 4.33inch * 4.33inch * 2.36inch Qty per Carton 96 Carton Weight 10.70kgs / 23.59lb Carton Size 46cm * 35cm * 34cm / 18.11inch * 13.78inch * 13.39inch Loading Container 20GP: 487 cartons * 96 pcs = 46752 pcs40HQ: 1130 cartons * 96 pcs = 108480 pcs

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Features1. Dual sensitivity mode (12~1000V, 48~1000V) 2. Self-test function when power on (beep and red light) 3. LCD screen indicator: Since the multimeter has a flashlight function and a large backlit screen, the value can be clearly read even in dark places. 4. Low power consumption: The pen multimeter has an automatic shutdown function, which will automatically shut down if there is no operation within 3 minutes. It uses two 1.5V AAA batteries (Not included)with very low power consumption. 5. Digital multimeter supports NCV non-contact voltage detection, and can distinguish the null line and the fire wire to avoid the risk of electric shock. Safe and reliable.Specification1. AC Voltage: 12V -1000V 2. Frequency: 50Hz/60Hz 3. Alarm Mode: Sound/Light/LCD Screen 4. Display: LCD Display Screen 5. Flashlight: Yes 6. High and Low Sensitivity Switch: Yes 7. AC Voltage Detect: Yes 8. Low Voltage Indicator: Yes 9. Auto Power-Off: Automatically shut down when there is no induction or operation for 3 minutes. 10. Battery type: 2 x 1.5V AAA Battery (not included) 11. Size: 167.45 x 26.30 x 21mm 12. Weight: 47.4g 13. Operating environment: 0-40 degree C, relative humidity: Less than or equal 95%. 14. Storage environment: -10-50 degree CSpecification: Package Weight One Package Weight 0.08kgs / 0.18lb One Package Size 22cm * 10cm * 4cm / 8.66inch * 3.94inch * 1.57inch Qty per Carton 120 Carton Weight 8.50kgs / 18.74lb Carton Size 55cm * 47cm * 24cm / 21.65inch * 18.5inch * 9.45inch Loading Container 20GP: 429 cartons * 120 pcs = 51480 pcs40HQ: 997 cartons * 120 pcs = 119640 pcs

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Features1. High speed, clear printing. 2. Small size, light weight, wireless design, simple connection, easy operation and maintenance, reliable performance. 3. Built-in rechargeable 1400mAh lithium-ion battery, long standby time. 4. Applications: - The mobile police system. - The tobacco distribution system. - The utility meter reading system. - The mobile office / mobile logistics systems. - The portable instrumentation. - The testing equipment, ancillary equipment.Parameters1. Printing method: Thermal line printing. 2. Printing width: Paper width 58mm, effective width 48mm. Print density: 384 dot/line 3. P Print line width: 24 characters / line, 48 English characters / line or 36 characters / line, 72 English characters / line or 12 English characters / line, 24 characters / line or 8 characters / line, 16 English characters / line. 4. Chinese character encoding: GBK. 5. Built-in font: ASCII Font(12*24, 8*16), GBK(24*24,16*16)(32*32, 48*48). 6. Print speed: 70mm/s. 7. Printer core life: 50KM (25% print density or less than 100 million puiese). 8. Printable Content: English, numbers, various symbols, characters, pictures and 1D/2D barcode printing, picture printing, multi languages printing. 9. Resolution: 8 dots / mm, 203DPI 10. Data communication interface: Mini-USB / Bluetooth. 11. Power supply: Machine charging 9V-1.5A. 12. Print time: Continuous printing 2.5-3 hours. 13. Instruction set: ESC / POS compatible instruction set. 14. Cut paper: Manually tear. 15. Reminder Settings: Battery reminder, Bluetooth connect reminder, paper alarm, beep sound. 16. Black mark detection: Yes, can be printed with a gap of the adhesive thermal paper. 17. Operating system: Android, iOS, Win9X/Win ME/Win2000/WinNT/WinXP, Win Vista, Win7, Win8, Linux.Specification: General Model Number QS-5806 Material ABS Printer Type Thermal Printer Printing Speed 70mm/s Print Width 48mm Paper Size 58mm width Interface Mini-USB Dimensions Size 115.5*85.5*38mm Package Included Package Contens 1 x Printer 1 x USB Cable 1 x Power Adapter Package Weight One Package Weight 0.42kgs / 0.92lb One Package Size 22cm * 16.5cm * 5.7cm / 8.66inch * 6.5inch * 2.24inch Qty per Carton 20 Carton Weight 7.36kgs / 16.23lb Carton Size 46cm * 35cm * 30cm / 18.11inch * 13.78inch * 11.81inch Loading Container 20GP: 552 cartons * 20 pcs = 11040 pcs40HQ: 1281 cartons * 20 pcs = 25620 pcs

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1. 3D surround sound, breathable earmuffs2. Lightweight design, no pain after long wearing3. Soft skin-friendly earmuffs, breathable and comfortable4. Without microphone, without volume adjustment5. Ergonomic design, fits ears, no pressure to wear6. Sounding principle: moving coil7. Material: Cotton8. Plug type: 3.5 / 6.5MM9. Sensitivity: 102DB10. Cable length: 1.2 meters11. Working voltage: 5V12. Working power: 0.5W13. Working current: 100MA14. Frequency response range: 20-20000HZ15. Horn diameter: 30MM16. Impedance: 32 ohms17. Wearing method: rear hanging type18. System support: WIN7 / WIN8 / WIN8.1 / WIN10 / XP19. Size: 14x10.8x5.5cm20. Weight: about 60GSpecification: Package Weight One Package Weight 0.08kgs / 0.19lb One Package Size 18cm * 14cm * 8cm / 7.09inch * 5.51inch * 3.15inch Qty per Carton 356 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 356 pcs = 63012 pcs40HQ: 412 cartons * 356 pcs = 146672 pcs

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1. Material: polycarbonate material2. Transmitting frequency: ≤12W3. Battery capacity: 4200 mA4. Working voltage: 7.4V5. Frequency range: 400-520MHZ6. Applicable scenarios: service/catering/site/property/warehouse, etc.7. 1000 times drop test, improve resistance to drop and impact8. 2-15km talking distance9. Dimensions: 135x50x33 mm10. Weight: about 480 gramsSpecification: Package Weight One Package Weight 0.50kgs / 1.11lb One Package Size 21cm * 25.5cm * 6cm / 8.27inch * 10.04inch * 2.36inch Qty per Carton 60 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 60 pcs = 10620 pcs40HQ: 412 cartons * 60 pcs = 24720 pcs

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