Usage:Personal Product name:2018 New Item Finder Theift Smart Wallet Child Anti Lost Device Color:Black, Blue, Pink, White, Green Function:Key finder Alarm Type:Portable Compatible:Android 4.4/ios7.0 Size:4.2*4.2*0.8cm Material:ABS Bluetooth version:Bluetooth 4.0 Low Energy APP name:iSearching or Findelfi Show More