?[EASY TO CONTROL 3 DEVICE] : Wireless mouse for laptop with Dual Bluetooth 4.0 modes and Wireless 2.4G technology. WisFox wireless Bluetooth mouse support to connect 3 devices two devices by Bluetooth and the third connect through 2.4GHz USB dongle. With one mouse, you can switch between them, just a simple click.The 3 illuminated numbers always let you know to which device you’re connected. Please note you cannot control three devices at the same time. ?[3 DPI LEVELS & 6 BUTTONS] ?WisFox mouse for laptop has 3 Adjustable DPI Settings, 1000, 1600 and 2400. This computer mouse gives precision tracking on just about any surface, with a DPI button helping to change the sensitivity on the fly. Extra 2 Side Buttons ideal for both work and gaming. The USB Wireless Mouse just requires a workable USB port. Only 2 steps: plug, and play. Pretty cool. Comes with a Nano receiver (stored in the back of the mouse). ?[ERGONOMICS DESIGN] : WisFox ergonomic computer mouse adopts a symmetrical streamline design, non-slip, a comfortable grip. And fits the contours of your palm and fingers while your thumb can be positioned comfortably on the thumb rest so you feel more comfortable as you work - even at the end of the day. ?[ULTRA-DURABLE &SUPER ENERGY SAVING] : WisFox Computer Ergonomic Wireless Mouse is made of skin-friendly silicone and plastic. Absolutely non-toxic and safe and comfortable. Super durable PC ergonomic mouse with perfect performance on 5,000,000 clicks keystroke test! The wireless mice will enter energy-saving mode after 1 minute of inactivity, or enter sleep mode after 8 minutes of inactivity. (To wake up: just double-click any button). ?[UNIVERSAL COMPATIBILITY & WIDE USE] : Bluetooth 4.0 mode is available for Windows 8/ window 10/ Android/ Mac iOS 11 and above systems (not available for Win7/XP) 2.4G wireless mode is suitable for any device with USB interface Plug and play! The maximum working distance is up to 33 ft. Great Bluetooth computer mice for various activities!