1、3 Mode Connection: The mechanical keyboard supports wireless 2.4G, BT 3.0, BT 5.0, Type c wired three modes 2、Ergonomic Layout: The blue keyboard has a 64 key ergonomic layout design, reducing wrist pressure and making it more comfortable to use 3、4 Switch Optional: The 64 key keyboard has blue switch, linear action switch, red switch, brown switch, with 4 switch optional 4、Rechargeable Battery: The wired keyboard is full key no punch, built in 1800mAh rechargeable battery, which can be charged when wired. You can switch and connect different devices by Fn and Q,W,E,R,T,Y 5、Scope of Application: Support for Win 2000, for Win ME, for Win XP, for Win Vista, for Win 7, for Harmony OS, for Win 8, for Win 10, for Android, for IOS and Other Systems Item Type: Mechanical Keyboard Material: ABS Color: Blue Connection Method: Support Wireless2.4G, BT3.0, BT5.0, Type C Wired Lighting: Monochromatic White Light, Multiple Lighting Modes Conflict of Keys: No Conflict for All Keys Battery Capacity: Built in 1800mAh Lithium Battery (included) Ergonomics: Support Working Current: 300mA (maximum) Standby Current: 0.5mA Compatible System: For Win 2000, for Win ME, for Win XP, for Win Vista, for Win 7, for Harmony OS, for Win 8, for Win 10, for Android, for IOS and Other Systems 1 x Mechanical Keyboard 1 x Adapter 1 x Key Puller 1 x Data Cable