Features:With functions of record lost locations, rename items, customize item icons.BT networking mode for closely sensing search, supporting loss mode.Super mini size and lightweight, portable to carry with you.Smart finder support to track your lost iOS phone, iOS pad, and iOS MP3.Low power consumption, just powered by a CR2032 battery.Specifications:Color: White / Black OptionalMaterial: ABSAuxiliary functions: record lost locations, rename items, customize item iconsNetworking Mode: BT, for close sensing search, supporting loss modeBuzzer: Built-in 75dB (in 10cm)System: iOS 14.5 and aboveWireless: BLE5.1Wireless Range: 40mCurrent: 5uA(standby)/10mA(Max.)Voltage: DC3VPower Supply: CR2032 battery (NOT included)Temperature Range: -5~45 (23~113)Humidity Range: 95% (non-condensing)Waterproof Grade: IP53Item Size: 37 * 37 * 8mm / 1.46 * 1.46 * 0.31inItem Weight: 9g / 0.32ozPackage Weight: 24g / 0.85ozPackage Size: 11.5 * 7 * 1.2cm / 4.53 * 2.76 * 0.47inPackage List:1 * Tag1 * Manual (English)