ProtoArc EM05 NL Trackball Vertical Wireless Simultaneous Connection to 3 Reduces Wrist Ergonomic Design Mouse, 62°, Silent, 2.4GHz Bluetooth,

【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.

【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary.

【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product.

【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. ✅【62° Vertical Ergonomic Design - Zero Strain on the Wrist】A vertical trackball mouse with an exquisite 62° tilt based on ergonomics. The moment you grip it, your wrist naturally rests at an angle, dramatically reducing fatigue in your arms and shoulders even during long hours of desk work. As it is a trackball type operated with the thumb, there is no need to move your wrist, making it ideal for preventing tendonitis. Experience the evolved next-generation trackball mouse. *Note on size: This product is designed to fit perfectly for people with medium to small hands. People with larger hands may find the little finger area a bit narrow. ✅【Space-saving & Quiet Operation - Comfortable Anywhere】Because the mouse itself doesn't need to be moved, you can work anywhere without a mousepad, whether on a small desk, sofa, bed, or on your lap. Furthermore, the left and right buttons have a "silent design" that reduces clicking noise, allowing you to concentrate without disturbing others in the office, cafe, or at home at night. This trackball mouse provides a free and comfortable work environment. ✅【Simultaneous Connection to 3 Devices & Instant Switching with One Click】Supports Bluetooth (2 devices) and 2.4GHz USB receiver (1 device). Allows simultaneous multi-pairing with up to 3 devices such as PCs, tablets, and smartphones. Simply press the switch button on the back of the unit to instantly switch connections, and the LED indicator lights (1/2/3) show the connection status at a glance. This wireless mouse is ideal for multitasking and managing multiple devices. Supported OS: Windows XP/7/8/10/11 and later, macOS 10.10 and later, iOS 13 and later, Android 4.3 and later, etc. ✅【5-Stage DPI Adjustment for Smooth Operation】One-touch adjustment of cursor speed to 5 levels: 200, 400, 800, 1200, and 1600 DPI. Flexible for everything from quick movement on dual monitors to detailed cell work in applications like Excel. *Note: Not suitable for extremely delicate operations such as gaming or drawing. ✅【Type-C Rechargeable & Long-Lasting Use】Economical Type-C rechargeable battery eliminates the need for battery replacement. With a built-in 500mAh high-capacity battery, a full charge of approximately 2-3.5 hours provides up to 120 hours of continuous use and 250 days of standby time. It automatically enters sleep mode after 30 minutes of inactivity to conserve power. ✅【Technical Standards Compliance Certified & 1-Year Warranty】This product has obtained "TELEC certification (Technical Standards Compliance Mark)" which complies with Japanese radio wave laws. It offers stable communication and can be with peace of mind. In addition, ProtoArc products come with a 1-year manufacturer's warranty from the date of order. If there are any problems or damage, please feel free to contact us by email. *A video on how to clean the trackball is posted on the product page, so please refer to it if necessary. The EM05 NL vertical trackball mouse allows you to operate it with just your thumb, without moving your wrist. Its ergonomic design and non-slip surface reduce wrist fatigue and tendonitis (ideal for those with medium to small hands). Its space-saving design that doesn't require moving the mouse itself and its silent left and right buttons allow for comfortable use in cafes and on bullet trains without disturbing others. It supports Bluetooth and 2.4GHz, allowing for easy switching between up to three devices. This high-performance wireless mouse features a Type-C rechargeable battery, no batteries required, up to 120 hours of continuous operation, and 5-level DPI adjustment.