Plug and play, simple and convenient. Suitable for all computers with USB interface.Up to 5 million times, Keyboard service life.Thin and compact design: 18 keys wired, mini portable keyboard.Slope design of water leakage accident.Anti-skid footpads can greatly protect the keyboard from sliding.Ergonomic design makes it suitable for your fingers and wrists, effectively reducing fatigue caused by long hours of work.Support automatic sleep mode without power button.When the device is ready to input data, the LED indicator lights up.Features:1. Bluetooth technology provides a cable-free & clutter-free connection, which is super convenient.2. Powered by 1 x AAA battery (Battery is not included). Compatible with most computers (for Windows / Androd / IOS).3. Auto Sleep Mode: It enters into hibernation/sleep mode if there is no operation for a long time, energy saving and frugal.4. Best for Notebook Users who always work with number keys, Mini digital keyboard.5. The remote control is within 10 meters (33ft), beware that wireless range may vary depending on interference or the setup of your device.Specification:Condition:100% Brand New & High Quality Material: ABSColor: BlackConnection: Bluetooth/USB WiredRemote Distance: 10mBluetooth Version: 3.0Number of keys: 18 (key)Battery: 1 AAA batteries (Not Included)Package Weight: 100gSize: 13.8 x 8.5cm / 5.4 x 3.3inchQuantity: 1pcPackage included:1 x Bluetooth Wireless Numeric Keypad Battery not included Note:1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.Applicable System: for WINDOWS XP/WIN 7/WIN 8/VISTA/WINDOWS 2003 Packages: 1 X Mini Keyboard