NEW Smart Wireless anti lost alarm key finder Bluetooth Anti Device Lost Tracker Alarm Key Finder Locator Alarm when it is out of valid distance. •Bluetooth seeker finder. Use it to find your cell phone, also use your cell phone to find it. •Remote control shutter function. •Bluetooth version 4.0 anti-lost device, low energy consumption •Ring bell and vibration reminder for alarm •Location tracker function, convenient for you to check the last staying location •Built in coin battery, can be replaced. •Compatible with iOS phones, Android system 4.3 version and up-grade version. •Intelligent anti-lost anti-theft device is suitable for wallet, car, kid, pets, bags, suitcase or other belongings. Specification: • Bluetooth version: V4.0 •Working distance: About 75 Feet (without barrier ) •Battery type: CR2032 Lithium Coin Battery