Usage:Personal Bluetooth:BLE4.0 Application:All tracker (support OEM) Support System:IOS8.0&8.0+, Android 4.4&4.4+, bluetooth 4.0 Working range:0-20m Dimensions::27.5 x 5.2 mm Net weight:2.5g Colors:Black, White, Blue, Pink., Rose Function:Anti-lost alarm, remote shutter Warranty:1 Year Certificate:CE FCC RoHS Show More