Features: 1.Dual Modes: This wireless number pad with touchpad adopts BT and 2.4G connection, which ensures fast connection. 2.Widely Compatible: This wireless number pad with touchpad is suitable for Win, for IOS, for Android and for OS X. 3.Touch Pad: This wireless number pad with touchpad is also equipped with a touch pad that could provide you with more control experience. 4.Portable Size: This wireless number pad with touchpad is small in size and light in weight, very convenient and portable. 5.500mAh Battery: This wireless number pad adopts inbuilt 500mAh battery, and providing maximum 10.9yd transmission distance. specification:Item Type: Wireless Number Pad Material: ABS Supported Systems: For IOS, For Android, For Win Key: 22 Keys Wireless/BT: Nordic(nRF51802) BT + 2.4G Dual Modes BT Version: BT 4.2 Keyboard Life (Times of Pressing): 5 Million Response Time :30 MS Wireless/BT: Transmission Distance: Approx. 10 Meters / 10.94yd Operating Current/voltage :1mA/3.7V (Typing) 7mA/3.7V (Touch) Built-in Lithium Battery Capacity: 500mAh (Battery Included) Charging Time: 3 Hours Charging Port Type: Type C Use Time: More Than 6 Hours Standby Time: >6 Months PackageList:1 x Wireless Number Pad 1 x Charging Line 1 x 2.4G Receiver 1 x User Manual