<p>IP65 has good waterproof performance. It provides important positioning for explorers and outdoor enthusiasts</p> <p>Magnetic charging Built-in 250mAh rechargeable battery Magnetic charging port</p> <p>Smart application control and display, enhance your user experience</p> <p>Modular design The BTB interface is reserved at the bottom to connect and replace different sensors. Meet your different application scenarios and needs</p> <p>Onboard SH1.25-2 battery interface, integrated lithium battery management system (charge and discharge management, overcharge protection, battery power detection, USB\/battery power automatic switching).</p> <p>Three- acceleration sensor</p> <p>Main control chip: ESP32-S3FN8</p> <p>LoRa chip: SX1262</p> <p>Maximum output power: 21\u00B11dBm</p> <p>Receiver sensitivity: -135dBm</p> <p>Battery: 3.7v lithium battery power supply interface</p> <p>Operating temperature: -20~70\u2103</p> <p>Wi-Fi: 802.11 b\/g, up to 150Mbps</p> <p>Bluetooth: Bluetooth LE: Bluetooth 5, Bluetooth mesh</p> <p>Touch switch: button 5V, magnetic suction</p> <p>Charging: 2P-2.54mm</p> <p>Waterproof level: IP65</p> <p>Operating temperature: -30~65\u2103</p> <p>Battery: 250mAh</p> <p>(Due to different batches, the printed words on the product be different, which does not affect use)</p> <p>specifications: 915mhz</p> <p>Material: plastic</p> <p>colour: As shown</p> <p>Package Contents:</p> <p>1 x Sensor</p> <p>1 x Charging Cable</p> <p>Only the above package content, other products are not included.</p> <p>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.</p>