Feature: 1. Widely Compatible: This wireless number pad is suitable for OS X Laptop and for Win system, ideal for desktop, laptop and tablet. 2. BT5.0 Connection: This numeric keypad adopts BT5.0 connection, which can automatically identify the system and connect. 3. Scissor Switch Keys: This number pad adopts 35 scissor switch keys that can effectively reduce incorrect input, providing more comfortable and faster typing. 4. Aluminum Alloy: This wireless keypad adopts aluminium alloy case and ultraslim design, about 1,000,000 times key life. 5. Type C Charge: This wireless numeric keypad has inbuilt 300mAh rechargeable battery, comes with Type C cable for charging. Specification: Item Type: Wireless Number Pad Material: Aluminium Alloy, ABS Charging Interface: Type C BT Version: BT5.0 Service Distance: 8 to 10 Meters / 26.2 to 32.8ft Number of Keys: 35 Keystroke Life: 1,000,000 Times Working Time: 90 Hours Battery Type: 300mAh Lithium Ion Battery (Inbuilt Battery Included) Product Size: Approx. 146.2 x 113.2 x 11.33mm / 5.8 x 4.5 x 0.4in ( Manual Measurement, Slight Error May Exist ). Package List: 1 x Wireless Number Pad1 x Type C Cable1 x User Manual