Model:TKMS668, TKMS668; Supported Operating Systems:i OS 7, Windows 8.1, Linux, Android 7.1, Android 7.1.1, Windows 10; Cell type: Li-ion; Total Batteries:1; Power Supply: Rechargeable Battery, Built-in Li-Battery Powered; Wi Fi:2.4 G Hz Wireless; Bluetooth Version: Null; Operating Range:15; Batteries Included:1 x Li R Li-ion battery; Listing Date:01/24/2019; Backlight: On / off White LED; Sub Categories: Remote Control, Keyboard, Air Mouse