How to connect this Bluetooth keyboard to iPad ：
1： turn on the power button of the keyboard.
（The power indicator will go out after flashing. This is to save power, not fault）
2：Long press the "Connect" button next to the power button until the Bluetooth indicator flashes
This turns on the Bluetooth of the keyboard 。
3：From the iPad's home screen, tap Settings. Tap on Bluetooth.
Make sure Bluetooth is set to On, then let it search for devices.
Tap on a Bluetooth keyboard, when it appears, to pair.
4：if an authentication (PIN) code appears on the iPad screen,
Enter the number with the keyboard and press“Enter” key .
5：When the connection is complete, the Bluetooth indicator will go out，
6：This is a 3-system keyboard,
If you are using this keyboard on your iPad，
Please press “FN” key first, don't release it, then press “E” key,
This is a system for the iPad