Key Features: Wireless communication includes Wi-Fi, Bluetooth, and LoRa. Modular design with a reserved BTB interface on the bottom for connecting and replacing various sensors. Touchpad and LED indicator light. Built-in 250mAh rechargeable battery, magnetic suction charging port. Integrated LoRa and Wi-Fi/BLE antennas, sleek appearance, compact and lightweight. High-strength plastic, IP65 waterproof. Supports Heltec Wireless Boot system for firmware downloads, information exchange, and log printing via Wi-Fi. Meshtastic project compatible. Secondary development can be done via Platform.io, etc. Standard 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 Receiving Sensitivity (GPS + BeiDou): Acquisition: -148dBm Re-acquisition: -160dBm Tracking: -162dBm First Positioning Time (With A-GPS, average of 500 real tests): Cold Start: 5.5s Warm Start: 2s Hot Start: 2s (Appearance may vary due to different product batches, which does not affect usage) Material: Plastic Color: As shown Specification: B Package Contents: 1 x CapSule Sensor V3(902-928MHZ) 1 x Charging Cable 1 x Lanyard Only the above package contents are included; other products are not. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real thing. The allowed measurement error is +/- 1-3 cm.