Features: 1.Multi Device Support: Multi device Bluetooth connectivity for up to 3 devices simultaneously, with a built in Bluetooth 5.1 chip that ensures stable connectivity and quick response within a 10m operating range, and easy switching between devices. 2.Compatible: Multi system compatible, the Bluetooth keyboard works seamlessly with for OS X, for iOS, for Windows, for Android, etc. Compatible with a variety of devices, including but not limited to PCs, laptops, tablets, phones, etc. 3.Quiet Design: The foldable design provides added convenience and fits directly into your pocket or backpack for on the go use. Quiet typing design allows you to focusing on your work. 4.65 Keys: Pocket keyboard is designed with 65 keys, Type C interface, built in 90mAh battery, which can support up to 45H use as well as 90 days standby. 5.ABS Material: Bluetooth keyboard is made of ABS material, which is wear resistant and durable, not easy to damage, and can be used for a long time. specification:Item Type: Foldable Bluetooth Keyboard Material: ABS Connection Mode: Wireless Bluetooth 5.1 Wireless Distance: Approx. 8-10meter / 26.2-32.8ft Number of Keys: 65 Keys Key Structure: Scissor Foot Charging Interface: Type C System Support: For OS X, for iOS, for Windows, for Android, etc. Battery Type: Built in 90mAh Lithium Ion Battery Usage Time: 45H Standby Time: 90 Days PackageList:1 x FoldableBluetoothKeyboard (Ship with InbuiltBattery) 1 x Data Cable 1 x User Manual