Battery: CR2032 lithium coin battery (not included)
Material: ABS
Appearance size: 31*52*11MM
Applicable system: IOS 7.0 above, Android 4.4 above
Product colors are: black, white, rose, green, blue, green
Note: APP application downloads:
Android system in the application treasure download, ios system in the app store download
Bluetooth version: Bluetooth 4.0
Working distance: about 75 feet (accessibility)
