DELUX Rechargeable Wireless Ergonomic Mouse, 2.4G and Bluetooth Vertical Mouse, 4000DPI, 6 Buttons, Reduce Hand Strain and Wrist Pain, for Laptop PC Windows (M618DB-Black)

[Bionic Volute Design] Compare to normal gesture, our ergonomic vertical mouse is held in a special hand-shake way, more considered with the muscle in nature. Relieve the pain in wrist and forearm.
[Built-in Rechargeable Battery] 500mAh Li-ion battery, once charged for over 1 week (8 hour per day). Entering sleep mode automatically for longer battery life.
[ 2.4G + BT Dual-mode Connection] Connecting with 2 devices at the same time, switch via the pairing button at the bottom of the mouse. On/Off switch and the the USB compartment is at the bottom of the mouse.
[4 Gear DPI and 6 Button] 4 adjustable DPI 800/1600 (default) /2400/4000, easy switch via the DPI key beside the roller wheel. Right button, added forward/back thumb buttons, simply navigating through large documents and web pages.
[All DELUX products include 12 months warranty and free lifetime technical support]
Wide Compatibility: Compatible with Windows 8/10/Mac OS (the backward and forward key is disabled in Mac) operating system (Compared with traditional mouse, with unique ergonomic vertical design, it may take a few days to get used to using it)