How to Use: Plug and play, the specific operation can refer to the detailed user manual Specification: Item Type: Three Mode Mechanical Keyboard Material: ABS Color: White Connection Method: Support Wireless 2.4G, BT3.0/5.0, Type C wired Lighting: RGB Multiple Lighting Modes Key Conflict: N Key Rollover Battery Capacity: Built in 1800mAh Lithium Battery (included) Ergonomics: Support Working Voltage: 5V DC Working Current: 300mA (max.) Standby Current: 0.5mA Compatible System:For Windows2000/ME/XP/ Vista/Win 7/HarmonyOS/ Win 8/Win 10,for Android,for IOS and Other Systems Package List: 1 x Three Mode Mechanical Keyboard 1 x Key Puller 1 x Adapter 1 x Data Line 1 x User Manual Note: Ships with built in battery.N Key Rollover: Built in 1800mAh large capacity rechargeable lithium battery, long lasting battery life, charging can be taken into account when wired connection; pressing all keys at the same time does not conflict with each other, quick response, quicker operation. Four Switches: Black switch,blue switch,red switch,brown switch are optional, giving you a different hand experience, black switch,green switch,red switch is suitable for game office; brown switch is suitable for home office. RGB Dynamic Backlight: Cool and colorful at will, switch a variety of light effects at will, adjust the light speed and brightness at will, and the keycaps are transparent and clear, creating a different cool and colorful ambience. 82 Keys: RGB mechanical keyboard reduces the volume, does not reduce the function, the optimized 82 key layout still retains the functions of the complete keyboard, small and reasonable, easy to carry. Three Mode: 82 keys mechanical keyboard has three mode connection, wireless or wired, supports wireless 2.4G, BT 3.0/5.0/Type C wired mode; the key line is more convenient to separate.