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 Systems 4. 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 Keyboard Material:ABS Color: Blue Connection Method: Support Wireless 2.4G, Bluetooth 3.0, 5.0, Type c Wired Lighting: RGB Multiple Lighting Modes Conflict of Keys: No Conflict for All Keys Battery Capacity: Built in 1800mAh Lithium Battery (Ship with Inbuilt Battery) Ergonomics: Support Working Voltage: 5V DC Working Current: 300mA (Maximum) Standby Current: 0.5mA Compatible 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