Rechargeable: Built-in rechargeable battery, with a charging cable. [Note: Please use computer's USB interface to charging the wireless mouse] | Silent Click: Special soundless design for the right and left buttons, help you build a quiet atmosphere without disturbing others. | Slim & Portable Design: About 4.4 x 2.25x 0.79 inches, Suitable for travelling carry and it can be easily put in to your laptop bag and ultra-space saving. | Simply to Use: Comes with a tiny USB Nano receiver (stored within the bottom of the mouse), just plug it into your PC, no need any driver, then you can use it. | Widely Compatibility: Works with Windows 2000/XP/7/8/10/Vista and Mac. Note: For USB C connection, simply plug the USB receiver into the Type C adapter, then plug adapter into your device.