•��﹤Long Time Operation﹥: Built-in 450mAh Rechargeable Li-ion Battery, 3 hours full charge with Type-C charger, above 90 hours uninterrupted work, stand by for 6 months.Please Read before Buying:Keyboard Characteristics1.Support HID Bluetooth connection2.Support Android, iOS, windows.3.Dealing with drawing lines on the surface case.4.Lightweight portable5.Adopt Broadcom Bluetooth chip, steady and rapid connection.6.Adopt scissor-feet structure, comfortable for using.Bluetooth keyboard pairingStep 1:Turn on the keyboard, status indicator blinking 5s then off.Step 2: Press 'FN+C' key, Bluetooth indicator blinking.Step 3: Open the Bluetooth and search, tablet PC search the keyboard (Bluetooth name: Bluetooth keyboard) automatically or manual, dlick connection.Step 4: Connect successful, Bluetooth indicator go out.(��) buttonPress once: turn on the backlight,Press twice: switch to breathing light.Press three times: turn off all lights.Note:For other Bluetooth equipment which can be activated, be careful tocheck the Bluetooth standard and compatibility before connect.