Features 1、Automatic alarm beyond the valid range. 2、Control the phone camera function. 3、Bluetooth 4.0, ultra‑thin design, easy to carry. 4、Bell plus vibration reminder alarm, a variety of ringtones adjustable. 5、Replaceable button battery. Specification Features: 1. Automatic alarm beyond the valid range. 2. Control the phone camera function. 3. Bluetooth 4.0, ultra-thin design, easy to carry. 4. Bell plus vibration reminder alarm, a variety of ringtones adjustable. 5. Replaceable button battery. 6. Low-power Bluetooth technology, battery life up to one year. 7. Positioning function, convenient to view the last position of the object on the phone. Specifications: Type: Bluetooth Battery: CR2032 Bluetooth version: Bluetooth 4.0 low power consumption Compatible mobile phone: For Iphone4s/5, for 5s, for 5c, for mini.ITouch5, for ipad3/4. Scope: mobile phones, wallets, cars, children, pets and other ancillary items Anti-lost device: Approx. 3.8*3.8*0.5cm/1.5*1.5*0.2in Packing box: Approx. 10.9*9*1.5cm/4.29*3.54*0.59in Colour: Blue Package List: 1 * Anti-lost device 1 * User Manual Package List 1 * Anti-lost device 1 * User Manual