Usage:Personal App:iTrack Easy Color:Green, Orange, White, or customized Bluetooth Version:4.0 Alarm Volume:98db +(iTrack 2) Working Time:12-18 months Size:36 x 36 x 5.6 mm Reminder Mode:LED Buzzer Remote Distance:50m Support:IOS 8.0+ and Android 4.3+ Certificate:CE FCC RoHS WEEE