Features: 1. It will auto power-saving mode when not in use for 15 minutes, Press any key can awake up the keypad. 2. Power Supply by 1* AAA Battery ( not included ) 3. The USB receiver is inserted in the battery compartment of the keyboard, no drivers required 4. Keys are easy and silent to press, greatly speed up your productivity 5. Integrated ergonomic tilt provides added comfort which helps reduce strain, great for those working on spreadsheets, accounting files or financial applications .
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