WIRELESS with BLUETOOTH CONNECTION: Turn on the keyboard, Press Fn+B until indicator flashed, Pair it under name “keyboard” or “KB-420”. FULL SIZE KEYBOARD with NUMERIC KEYPAD: 17” keyboard with 110 keys. RECHARGEABLE: Built-in 450mAh rechargeable battery lasts up to two month, standby time up to one year. Can be charged by USB C cable included. BUILT-IN KICKSTAND: Options on either flat or raised angle. COMPATIBLE to Apple Mac OS and Windows OS. . Height: 0.31-0.47” (0.8cm-1.2cm)
. Length: 16.62” (42.2cm)
. Width: 4.49” (11.4cm)
. Weight: 1.23 lbs (0.56kg)
. Compatible with Mac OS 10.13.6 or later