Specification:Model MIM10Support systemModels after IPhone 4S/Most Android modelsWeight About 36gBluetooth chipBLE low energy Bluetooth 4.2 chipBatteryLithium battery 3.7V 250mASupported modelsAbout IOS 9.0/Android 8.0Features:1. Food grade silica gel, skin-friendly and more comfortable to wear.2. L..