HXSJ T22 2.4GHz Wireless 4-Keys 2400 DPI Adjustable Ergonomics Optical Vertical Mouse(Black)

1. 2.4GHz Wireless Connectivity (USB receiver & rechargeable mouse usb cable included) 2. Built in 600mAh rechargeable battery 3. Ergonomic designed to remit and prevent carpal tunnel syndrome. 4. Optical laser technology for precise control 5. User convenience with wow-pen's signature, pen-grip comfort. 6. L/R mouse buttons, 2 thumb buttons, and a clickable scroll wheel, DPI button. 7. You pick the hand position that best suits you. Plug and play, compatible with Mac. 8. Charging cable length: 70cm 9. System requirements: Windows 98/Me/2000/XP/Vista/Win7/Win8/win10 or latest.