The Software and Manual: https://sikaicase.com/blogs/support/setting-for-software

Only BT Version Have Layer Function, But it's not RGB Light.

New Version have could enter max 18 characters one key, other keyboard only enter 5 characters one key. please ask us if you want enter many characters in one key but don't know how to choose.

If you want Use the Keyboard in Mac, Please Set in the Windows First. Command= Win+, Option=Alt, Control=Ctrl.

Another thing to note about BT Version is that if the battery switch is turned on, the keyboard cannot be connected when it enters standby sleep mode. Press "Key1" to wake up the keyboard first.

and if you have any problem, please contact with us, we will solve the problem as soon.

About this item

• 【Convenience】Note; please do not receive the 2.4G receiver customers, contact us, we may have missed in the shipment of the installation. We will send you a replacement, thank you! Please contact us!This is a 6 Keys Programmable Keyboard with Adjustment Knob, You Could Set the Shortcut Keys to Reduce the Cumbersome Process. 3 Connection Modes: 2.5G Receiver Wireless, BT Wireless, USB Wired Connection.
• 【Memory Function】The Keyboard has a Storage Function, which Can be Used on Systems that Support USB Protocol such as for Linux, for IOs, etc. After Setting it up on the for Windows System.
• Settable Knob: The Knob Could Also be Set, with Functions Such as, Play the Previous Song, the Next Song, Volume Up, Volume Down, Pause, Play and Other Functions.
• RGB backlight can be customized to the player's desired color. The backlight brightness can be adjusted/turned off.
• The Software and Manual Download Address:https://sikaicase.com/blogs/support/setting-for-software,Please Download then Open the exe file.Please Contact with Us Anytime if You Have Any Problem.