This small keyboard has been updated to Bluetooth 4.0, which ensures that the Bluetooth keyboard remains connected without interruptionThis backlit keyboard works perfectly with all four major operating systems iOS, Android, Mac OS and Windows that support BluetoothCompatible with iPad 1, 2, Air, Air 2 iPad mini 3, 2, 1, Retina iPhone Android tablets, such as Samsung Galaxy Tab, Google Nexus Windows, etc. Easy to set up and pairNot applicable to Fire TVThe colorful RGB backlight looks like rainbow. The soft light ensures that it can be seen in the dark, but it will not hurt your eyesThe multimedia function can easily help you take screenshots, change the language, and change the input language these 3 functions are only applicable to iOS system. You can also adjust the screen brightness, search, play, stop, and adjust the volume. Very suitable for smooth use of mobile phones and tabletsThe rechargeable battery can be used continuously for 70 hours backlit, most of the time it can meet your needs when you are away from homePortable size, super light and thin, easy to carry around. We also prepare a carrying bag for youSpecificationsTransmission method BluetoothBluetooth version Bluetooth 4.0Power supply BL-5B 420mAhCharging voltage 4.7V-5.25VCharging current 300mASleep current level 1 10uAWorking voltage 3.7vWorking current 48mASize 285 126 14mmNoticeThe Bluetooth receiver is not included. If it is used for devices without built-in Bluetooth, please purchase a universal receiver