More from the ManufacturerKeyboard/Keypad Keyboard/Keypad Type - Keyboard Keyswitch Technology - SX Keyboard/Keypad Connectivity Technology - Wireless Keyboard/Keypad Wireless Technology - Bluetooth/RF Keyboard/Keypad Wireless Operating Frequency - 2.40 GHz Keyboard/Keypad Features - Rechargeable Battery Keyboard/Keypad Features - LED Indicator Localization - English (US) Bluetooth Version - 4.0