Feature:1. Three Mode Connection: Three mode connection, wireless or wired, supports wireless 2.4G, Bluetooth 3.0 5.0, Type c wired three modes, to meet your different needs.2. Ergonomic: The ergonomic layout design reduces the pressure on the wrist and is more comfortable to use, even if it is used all day long, it will not be very tired.3. Free Switch: Fn+Q, W, E, R, T, Y switch to connect different devices, For Windows2000, for ME, for XP, for Vista, for Win 7, for HarmonyOS, for Win 8, for Win 10, for Android, for IOS and Other Systems4. Energy Saving: The keyboard has a built in 1800mAh large capacity rechargeable lithium battery for long lasting battery life, which can be charged during wired connection.5. 64 Keys: 64 key layout, still retaining the full keyboard should be small and reasonable, made simple, portable, easy to use, does not take up space.Specification:Item Type: 64 Key Mechanical KeyboardMaterial:ABSColor: BlueConnection Method: Support Wireless 2.4G, Bluetooth 3.0, 5.0, Type c WiredLighting: RGB Multiple Lighting ModesConflict of Keys: No Conflict for All KeysBattery Capacity: Built in 1800mAh Lithium Battery (Ship with Inbuilt Battery)Ergonomics: SupportWorking Voltage: 5V DCWorking Current: 300mA (Maximum)Standby Current: 0.5mACompatible System: For Windows2000, for ME, for XP, for Vista, for Win 7, for HarmonyOS, for Win 8, for Win 10, for Android, for IOS and Other Systems.Package List:1 x Keyboard1 x Adapter1 x Key Puller1 x Data Cable