ECHTPower Trackball Mouse, Easy Thumb Control Ball Mouse, Precision and Smooth Tracking, Wireless Mouse Support 3 Device Connection(2.4G or BT), Rollerball Mouse for PC/Laptop/Mac/Windows

Ergo Trackball MouseWireless mouse can be controlled by the thumb, without moving the arm, and has a 15 tilt design. It can keep the hand more comfortable and effectively relieve muscle fatigue of the hand and wrist. ^^ Tri-mode MouseUp to 3 devices can be connected via Bluetooth or USB receiver and easily switched with one button. Ball mouse has a maximum stable connection distance of 10M, perfect compatibility with PC/Laptop/Windows/Mac/iPad. ^^ Mute Button DesignThe Left button/Right button/Forward button/Back button is designed to silent click, which reduces clicking noise by 90% compared to the normal mouse, silent mouse lets you focus on work without disturbing others.

^^ Precise Optical TrackingRollerball mouse adopts a trackball optical system, ideal for narrow office spaces and crowded desks. Precise tracking and smooth control can be achieved on various surfaces. ^^ Long Working LifeECHTPower bluetooth mouse is powered by an AA battery (not included). After no power, just replace the new battery to continue to use, wireless use forever. A 2400mAh AA battery will last for 2 months based on 8 hours per day. ^^ Package Includes1 X Track ball Mouse, 1 X USB Receiver, 1 X User Manual. If you have any questions, please feel free to contact us.