ProtoArc Wireless Trackball Mouse, EM01 NL Ergonomic Bluetooth Rollerball Thumb Mouse Rechargeable Computer Laptop Mouse, Adjustable Angle & 3 Device Connection for PC, Mac, Windows – Gray Ball

• ERGONOMIC DESIGN: Unique adjustable hinge allows you to customize the trackball angle from 0 to 20 degrees according to your own needs, which ensures a more natural, comfortable hand position for all-day comfort
• BLUETOOTH & 2.4 G WIRELESS CONNECTION: PLUG and PLAY. With triple connection modes of the trackball mouse, you can control three devices simultaneously, switch freely between PC, laptop and iPad with just one button to improve your efficiency. Wide compatible with Windows, Android, Mac OS PC Laptop Desktop etc
• PRECISE THUMB MOUSE: ProtoArc trackball mouse provides accurate and smooth tracking, allowing for easy navigation through documents and web pages. No longer need to move your arm for the movement of the cursor. Your thumb will control the cursor instead. The thumb mouse will effectively reduce fatigue and strain on your wrist and arm. More productive in the narrow space, such as the messy desktop, couch, bed etc
• QUIET CLICKING: Smooth frosted surface and quiet click can bring a better user experience, which free your worry about bothering others and keep you stay focused while working (Note: The middle scroll wheel is not silent. All the buttons are non-programmable and the back forward buttons are not compatible with Mac OS system)
• RECHARGEABLE & ADJUSTABLE DPI: Built-in rechargeable lithium battery, the bluetooth Trackball Mouse don’t need to change batteries. Please remember to turn it off if you do not use it for a long time. 5 DPI levels (200/400/800/1200/1600) allow you to change the cursor sensitivity easily and track more smoothly
• WARM NOTE: After using the trackball for a period of time, please clean the trackball and the three white rollers inside the hole to ensure that the trackball is always smooth. Note: When the computer is just started or a large application is running, it may also cause the trackball to not run smoothly.
• Are you new to trackball mouse? 1. Be patient and give yourself time to adapt to the trackball’s unique operating style 2. Experiment with different hand positions to find what is most comfortable for you 3. If your hands feel tired, you can reduce the use time, increase the frequency of rest, and do hand relaxation exercises until you get used to it 4. If you still can’t adapt to it after a period of use, please contact our customer service for assistance

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Portable projector, Smart light bulbs, Wi-Fi extender, Mesh Wi-Fi system, Gaming monitor, Mechanical keyboard, Ergonomic mouse, Webcam, Noise cancelling headphones, Portable power bank