Reliable Wireless Connection: The iClever Bluetooth Mouse allows you to connect up to 3 devices simultaneously via both 2.4G receiver and Bluetooth! You will have plenty of freedom with the generous 10 meters (32 ft) range so you can work anywhere you want to. | Rechargeable & Energy Saving: The powerful rechargeable battery provides 30 days of use after 2 hours of charging--you will spend less time waiting and more time working. Better yet, you can still use the mouse during charging. If you have not used it for a while, it will enter power-saving mode. (Press any key to wake up.) | 7 Buttons: Whisper-quiet right/left button, aluminum-alloy scroll wheel, DPI button (4 levels:800/1200/1600/2400), forward/backward button (not applicable to Mac/iOS), and connect button work to provide an easy and convenient experience. | Ergonomic Right-hand Design: The curve shape of the mouse perfectly fits your right palm. A slight concave curve on the left side provides your thumb an anti-slip grip and relieves fatigue caused by long-term use. Thanks to the frosted finish, hand sweating is no match and effortless holding is within reach! | Universal Compatibility: Whatever your preferred device is, this handy Bluetooth mouse connects to all of them ---PC, laptop, tablet, and phone. Fully compatible with Windows XP/Vista/7/8/10, Mac, iPad OS, iOS, Android, Chrome OS. | 1 year limited hardware warranty