Keyboard/ Keypad Connectivity Technology Wireless Keyboard/ Keypad Wireless Technology Bluetooth Keyboard/ Keypad Wireless Operating Distance 10 m Keyboard/ Keypad Features Lightweight Keyboard/ Keypad Features Rechargeable Battery Keyboard/ Keypad Features USB (Universal Serial Bus) Charging Hot Keys On/ Off Switch Localization English Interfaces/ Ports Keyboard/ Keypad Host Interface USB (Universal Serial Bus) Battery Information Battery Chemistry Lithium Ion (Li-Ion) Maximum Battery Run Time 2 Month Physical Characteristics Keyboard/ Keypad Height 9 mm Keyboard/ Keypad Width 261 mm Keyboard/ Keypad Depth 128 mm Weight (Approximate) 300 g