Main Features: Wireless communication include Wi-Fi, Blue-tooth and LoRa. Modular design, with a BTB interface reserved at the bottom, capable of connecting and replacing different sensors Touch pad and LED indicator light. Built in 250mAh rechargeable battery, magnetic suction charging port. Built in LoRa and Wi-Fi/BLE antennas, stylish appearance, compact and light. High strength plastic, IP65 waterproof. Support Heltec Wireless Boot system, download firmware, exchange information, and print logs through Wi-Fi. Meshtastic project compatible. Secondary development can be done through , Platform.io,etc. Default Satellite Configuration: GPS + BeiDou Frequency Bands: GPS L1 C/A: 1575.421.023MHz BeiDou B1I: 1561.0982.046MHz GLONASS L1: 1597.78~1605.66MHz Power Supply: Voltage range 2.7~3.4V, typical value 3.3V L76K Power Consumption at VCC=3.3V@-130dBm: GPS: Acquisition (mA): 23 Tracking (mA): 23 Standby (A): 20 Backup (A): 8 GPS + BeiDou: Acquisition (mA): 29 Tracking (mA): 29 Standby (A): 20 Backup (A): 8 GPS+GLONASS: Acquisition (mA): 29 Tracking (mA): 29 Standby (A): 20 Backup (A): 8 Reception Sensitivity (GPS + BeiDou): Acquisition: -148dBm Re-acquisition: -160dBm Tracking: -162dBm First Positioning Time (With A-GPS, average of 500 real-world tests): Cold start: 5.5s Warm start: 2s Hot start: 2s (Due to different product batches, the appearance , which does not affect the use) Material: Plastic colour: As shown Specification: B Package Contents: 1 x CapSule Sensor V3(902-928MHZ) 1 x Charging Cable 1 x Lanyard 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.