1. Dustproof, waterproof and shockproof, flexible installation and multifunctional positioning 2. iBeacon-N20 is a low-power Bluetooth beacon that can be fixed anywhere, used for indoor and outdoor positioning and real-time object or personnel tracking, and a low-power Bluetooth product for positioning and marketing 3. This device does not need to be connected to , and only uses low-power Bluetooth technology to transmit broadcasts and intelligent signal receiving devices to coordinate positioning or tracking objects moving from one place to another 4. The application scenarios of iBeacon-N20 include attendance and positioning management, chemical plant inspections and operation route inquiries, shopping mall positioning navigation, advertising and event marketing, asset anti-theft and anti-loss, visitor management for conference activities, etc. 5. Ultra-wide coverage, search filtering, OTA upgrade Communication method: BLE5.0 (compliant with Bluetooth low energy standard protocol) Chip used: NRF52820 (NODIC chip) Transmitting power: 0DBM (4DBM to -20DBM9 gears adjustable) Transmitting frequency: 700MS (100MS to 1000MS adjustable) Quiescent current: less than equal 0.94UA Broadcast current: 20.1UA (0DBM or 700MS) Working temperature: -20-and54 Transmission distance: open space limit transmission distance 100 meters (adjustable) Safety performance: support password modification to prevent malicious tampering Supported devices: IOS7.0 and above, ANDROID4.3 and above The product appearance and printed words depending on the batch, but this does not affect use. Colour:White Material:ABS Package Contents: 1 x Bluetooth Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.