Features: 1.2 Modes: The wireless numeric keypad supports BT and 2.4G dual modes, and supports one key switching for quick connection 2.Touchpad: The wireless number pad has a large touchpad, the size of the touchpad is 78x110mm, with left and right mouse buttons 3.7.5 Degree Angle: The number keypad has an ergonomic 7.5 degree angle, which can effectively relieve hand fatigue with the concave arc of the keycap 4.10m Wireless: The numeric keypad with touchpad has a 10m wireless range (the range may be affected by the wireless environment) 5.Strong Compatibility: The laptop keypad supports for iOS, for Android, for Win, for OS X. Support automatic identification system function specification:Item Type: Wireless Numeric Keypad Material: ABS Connection Method: BT and 2.4G Dual Mode BT: 5.0 Keyboard Size: Approx. 167.3 x 118.7 x 13.3mm / 6.6 x 4.7 x 0.5in Touchpad Size: Approx. 78 x 110mm / 3.1 x 4.3in Working Distance: 10meters/10.9yd Support System: For iOS, for Android, for Win, for OS X Number of Keys: 22 Keys Working Voltage: 3.0 to 4.2V Working Current with Buttons: