Feature:1. Built in 1800mAh Battery: The computer keyboard has built in 1800mAh high capacity rechargeable lithium battery for long lasting. With an 82 key layout. Ergonomic layout design reduces wrist stress2. RGB Backlight: The mechanical keyboard can be adjusted light speed and brightness at will, and the keycaps are transparent and clear3. 4 Switch Options: The gaming keyboard's linear action, green, and red switches are suitable for gaming and office work, and the brown switches are suitable for home office work4. Scope of Application: Connect to different devices via Fn+Q/W/E/R/T/Y, support for Win2000, for Win ME, for Win XP, for Win Vista, for Win 7, for HarmonyOS, for Win 8, for Win 10, for Android, for IOS and other systems5. 3 Connection Modes: The gaming keyboard supports wireless 2.4G/BT3.0/5.0/Type c wired three modes, the key line separation is more convenient, and can be charged while wired. Full key no punchSpecification:Item Type: Mechanical KeyboardMaterial: ABSColour: BlackConnection Method: Support Wireless 2.4g/BT 3.0/5.0/Type C WiredLighting: RGB Multiple Lighting ModesConflict of Keys: No Conflict for All KeysBattery Capacity: Built in 1800mah Lithium Battery (included)Ergonomics: SupportWorking Voltage: 5V DCWorking Current: 300mA (maximum)Standby Current: 0.5mACompatible System: For Win2000, for Win ME, for Win XP, for Win Vista, for Win 7, for HarmonyOS, for Win 8, for Win 10, for Android, for IOS and other systems.Package List:1 x Mechanical Keyboard1 x Key Puller1 x Adapter1 x Data Line1 x User ManualNote:Shipped with Built in Battery