Specifications:
Material: ABS
Appearance size: 37*37*6MM
Applicable system: IOS 7.0 above, Android 4.4 above
Product colors are: black, white, red, green
Note: APP application downloads:
Android system in the application treasure download, ios system in the app store download
Bluetooth version: Bluetooth 4.0
Battery: CR2032 lithium coin battery (not included)
Battery Life: 30 Hours & Up
Working distance: about 75 feet (accessibility) Work with Bluetooth