2014 Multifunctional Combination Tracker, Anti-theft Monitor, with Wireless Autodyne Shutter&pound;&not;Voice Memo Function for iPhone/IOS/Android phones by Wmicro Application Area: IOS 6.0 and Android 4.3 above (Include IOS 6.0 and Android 4.3) Working Distance: 5-10 meters (selectable) 1x Bluetooth Follower Bluetooth 4.0 version with low power dissipation The monitoring distance of the shutter is 5-10 meters, users can set detection range themselves