Ewin Trackball Mouse, Bluetooth/USB Receiver Compatible, Connects up to 3 Devices, One-Touch Switching, Wireless Mouse, Thumb Operation, Silent, Ergon

💡【Designed to Reduce Strain on Wrist and Arm】 Because there's no need to move the mouse, this design minimizes strain on your wrist and arm. Do you experience wrist or shoulder pain after using a mouse for extended periods? For those with this problem, we highly recommend a trackball mouse that reduces fatigue and saves space. EWIN trackballs allow you to control the cursor by rolling the ball with your thumb. Furthermore, it features an ergonomic shape that fits comfortably in your hand, ensuring comfortable operation. It's the perfect solution for those who experience strain on their wrists and shoulders. To reduce strain and achieve efficient and comfortable work, please try an EWIN trackball.

🌟【Packed with Versatile Button Functions】 In addition to left and right buttons and a scroll wheel, this comfortable and easy-to-use trackball mouse is equipped with a DPI button that allows you to change the count according to your needs. This DPI button allows you to switch the cursor speed between 200, 400, 800, 1200, and 1600 DPI in five stages. This allows you to effortlessly perform everything from detailed tasks like Excel and drawing to tasks that require using the entire screen. It also features convenient forward and back buttons for easy internet browsing (not compatible with Mac), making web page viewing a breeze.

🔗【Convenient Wireless Connectivity】Utilizing an energy-efficient Bluetooth chip and advanced 2.4GHz micro-receiver, it offers a connection range of up to 10m. It provides a stable connection even in congested wireless environments, minimizing interruptions. It supports both Bluetooth and USB receivers, allowing for worry-free use even with devices lacking a USB port. (The USB receiver is stored in the battery compartment. Please open the battery cover before use.)

🔋【Up to 18 Months of Long Battery Life】Adopting power-saving technology, it can be comfortably used for up to 18 months with just one AA battery, eliminating the need for battery replacement. It also features a convenient status indicator.

❎【Silent Design for Reduced Noise】Designed to quietly suppress click sounds, it reduces noise by more than 90% compared to conventional models. You can concentrate on your work without being distracted by your surroundings, even in quiet places like cafes or libraries.