Brand: Eufy Model: T87B4011 Type: Bluetooth Smart Tracker Compatibility: Android Devices Bluetooth Range: Up to 80 m Alarm: 80 dB Loud Alarm Battery: Replaceable CR2032 Battery Battery Life: Up to 1 Year Water Resistance: Water-Resistant Design Recovery Feature: QR Code Contact Recovery App Support: eufy Security App Usage: Tracking Keys, Bags, Wallets and Luggage Color: Black