Note 1:
"Num Lk" key, "↑ ↓ →" key, Home key, End key, Ins key, Del key, PgUp key and PgDn key can be used with Windows XP / Vista / 7 / 8/ 10, but not for M ac OS and iOS.NumLock: The numeric key is synchronized and is not linked with the NumLock on the Logitech Unifying keyboard side of the NumLock which is synchronized and does not work with the NumLock on the Logitech Unifying keyboard.This product does not include a USB receiver.
How to Connect Bluetooth
1. Insert AAA batteries and turn on the back of this product.Red light will light up for 3 seconds.2. Press and hold the Bluetooth (TAB) key for 3 seconds, the green LED flashes and enter USB connection mode.3. Turn on the Bluetooth function in the settings of the device you want to connect.Please search for this product.4. Tap the detected "Bluetooth 3.0 keyboard".Pairing is complete.