LOW POWER CONSUMPTION: Intelligent sleep mode can better extend battery life. It enter auto sleep mode if you don' use it for 5 minutes to save battery and need to click it, the mouse enter working mode again. STABLE CONNECTION: 2.4 GHz wireless provides stronger anti-interference ability, a faster transmission speed and a more reliable connection, working distances can up to 10 m, and high DPI can track more smoothly over most surfaces. WIDE COMPATIBILITY: Well compatible with for Windows7/8/10/XP, for OS etc. Fits for desktop, laptop other devices. ERGONOMIC & COMPACT DESIGN: USB-receiver stays in your PC USB port or stows conveniently inside the wireless mouse when not in use. The and simple features make the mouse perfect for the journey, office, home. WHISPER & SENSITIVE CLICKING: Smooth frosted and quiet clicks can bring a better user experience and free your worry about bothering others and keep you stay focused while working,and PU stickers can DIY your personality. Sensor model:Pixart 3311 Operation Mode:-electronic Power Type:Rrechargeable DPI:12000 Type:Bluetooth Wireless The product appearance and printed words depending on the batch, but this does not affect use. Colour:Black Material:ABS Package Contents: 1 * mouse 1 * charging cable 1 * Chinese and English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.