BT304 22 Keys Numeric Keypad Wireless Mini Keyboard Compatible with Bluetooth 5.0 Feature: 1. Ergonomic design, more comfortable handfeel. 2. Support compatible with Android, compatible with Windows, compatible with Mac OS systems. 3. 22‑key wireless ultra‑thin numeric keypad, compatible with Bluetooth 5.0. 4. Use time up to 80 hours , keystrokes up to 3 million times 5. Scissor foot key cap structure design, fast rebound speed, low delay. Specification: Item Type: 22 Keys Numeric Keypad Material: ABS Optional Colour: Black / Silver Black / Iron Gray / Rose Gold Support System: compatible with ANDROID, compatible with WIN, compatible with Mac OS Number Of Keys: 22 Keys Compatible with Bluetooth: Compatible with Bluetooth Version 5.0 Keyboard Life (Keystrokes): 3 Million Times Response Speed: 5 Milliseconds Compatible with Bluetooth Transmission Distance: Approx. 10m / 32.8ft Working Current / Voltage: 0.25MA 3V Battery Type / Capacity: 2xAAA (Not Included) Use Time: 80 Hours Package List: 1 x Numeric Keypad (Battery Not Included) 1 x User Manual 1) We accept Alipay, West Union, TT. All major credit cards are accepted through secure payment processor