RF wireless remote control electronic key finder, which is environmental and have no radiation. Helps you find your keys and purse easily. Long battery service time and working distance. Light and small, and easy to carry around and operate. Specifications: Type: Anti-theft/Lost Device Material: Plastic Bluetooth version: Bluetooth 4.0 Low Energy Compatible Phone: For iPhone6/6plus/5S/5C, for iPad Mini, for iTouch 5, for iPad 3/4, for iPad Air and Android system with Bluetooth 4.0 Smartphone (Android 4.3 version and upgrade version)Working distance: ‰¤25m (Outdoor environment)Suitable for: Wallet, Car, Kid, Pets, Bags, Suitcase or other belongings. Battery: CR2032 Lithium Coin Battery Standby time: 6 month App Name: iTracing Item size: Approx. 5.2 * 3 * 1cm / 2 * 1.2 * 0.4inItem weight: Approx. 9g / 0.3oz Package List: 1 * Anti-theft/Lost Alarm1 * User Manual.