ProtoArc Vertical Wireless Trackball Mouse, EM05 NL Bluetooth Ergonomic Rollerball Mouse Rechargeable Computer Laptop Thumb Mice, 3 Device

** ProtoArc Vertical Wireless Trackball Mouse** The ProtoArc Vertical Wireless Trackball Mouse emerges as a strong contender in the ergonomic mouse category, particularly for users who prioritize comfort and functionality during extended computer use. The design features a 62-degree tilt that positions the user's hand in a more natural and relaxed state, reducing strain on the shoulder. Many users have lauded this angle as a significant improvement over conventional mice and even other trackballs, leading to less fatigue during prolonged use. One of the standout attributes of the ProtoArc mouse is its robust build quality, which many users feel surpasses that of competitors like the Logitech M575. The buttons are described as both responsive and quiet, contributing to a pleasant user experience. The smooth movement of the trackball has also been positively received, although some users expressed a desire for a slightly larger trackball for enhanced control. The versatility of the mouse is apparent from its dual connectivity options—both a 2.4GHz dongle and Bluetooth capabilities—allowing seamless usage across multiple devices, including PCs and iPads. This multi-device functionality is particularly beneficial for users navigating between different ecosystems. However, while users appreciate this feature, some have noted potential drawbacks such as the inability to customize button functions and the visibility of the dongle during setup. For all its merits, a few minor concerns were raised. Some users found the scroll wheel a bit loose for their preferences and pointed out the need for better visibility of the dongle. Additionally, the absence of a protective cover for the charging port and dongle insert areas has been noted as an area for improvement. Nonetheless, the ProtoArc Vertical Wireless Trackball Mouse offers an excellent balance of comfort, functionality, and value, especially when compared to pricier options. As more users seek ergonomic solutions for their computing needs, this mouse stands out as a worthy option for both seasoned trackball users and those venturing into the vertical mouse category. **