Item Type: Anti?Lost Device Material: ABS Communication Method: Bluetooth 4.0 Working Frequency: 2402MHz-2480MHz Communication Distance: Approx. 0-25m / 0-82ft (depending on the specific environment) Battery Type: lithium battery Battery Capacity: 50mAh Typical Input: 5V / 1A Current: 2.5mA Power: 10.5μW Battery Life Time: more than 2 months Charging Time: one and a half hours Working Temperature: -10~+40℃ Indicating Volume: about 80dB APP Name: Joy Hunting System Compatibility: for IOS 10.0, for android 5.0 and above Support Languages: Simplified Chinese, Traditional Chinese, English, Spanish, Japanese, Korean, German, language support French, Arabic, Russian. 1、Support one?key call, save valuable time, easy, convenient, fast, with reminder function. 2、Reverse call to find the mobile phone is not afraid of silent vibration, a mobile phone can be connected to up to 5 anti-lost devices. 3、3 in 1 mobile phone charging cable, support for Android/IOS charging. While charging, it can replenish the battery. 4、Support for Android and for iOS systems to automatically recognize for iOS system, more assured use. 5、Automatic charging, long battery life without changing the battery. It can be used for more than two and a half months with one charge. 6、APP supports the modification of the name of the finder, such as key and packaging, to facilitate searching. 1 x Key Finder 1 x Manual