ProtoArc EM04 Trackball Mouse Quiet, Bluetooth, 2.4 GHz, Connects to 3 Devices Simultaneously (Color Red)

---------------------------------------------------------------------- 【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. ---------------------------------------------------------------------- ✅【15° Ergonomic Design to Reduce Wrist Strain】This trackball features a 15° tilt angle for a natural grip. Because it allows for operation without twisting the wrist, it significantly reduces strain on the wrist and forearm muscles during long hours of PC work, making it ideal for preventing mouse-related tendinitis. We confidently recommend this for those who do a lot of desk work or those trying a trackball mouse for the first time. (※Not suitable for those with small hands (from the bottom of the palm to the tip of the middle finger is less than 17.5cm). Please check the size before purchasing.) ✅ 【Space-saving thumb operation & comfortable work anywhere】This thumb-operated trackball mouse allows you to control the cursor simply by rolling the ball with your thumb, without moving the device itself. Since a mousepad is not required, it can be accurately even in limited spaces such as small desks, bullet train seats, sofas, beds, and on your lap. It allows you to maximize the use of limited work environments when working from home (remote work) or on business trips. ✅ [Simultaneous Connection of 3 Devices & Multi-OS Compatible] Supports both Bluetooth connection (2 devices) and 2.4GHz wireless connection (1 device). Simply press the connection mode switch button on the underside of the wireless mouse to instantly switch between up to three devices such as PCs, tablets, and smartphones. Compatible with a wide range of operating systems including Windows, macOS, iPadOS, iOS, Android, and Chrome OS, it's perfect for multitasking using multiple devices. (*USB receiver is stored on the underside of the mouse. Forward and back buttons are not supported on macOS.) ✅【Silent Click】This mouse features silent switches on the left and right buttons, reducing click noise by over 90%. It can be without disturbing others in quiet environments such as offices, libraries, or at home late at night. (Note: The DPI and forward/back buttons are not silent.) ✅【5-Stage DPI Adjustment & 6 Buttons for Enhanced Work Efficiency】 You can freely change the DPI (cursor speed) to 200/400/800/1200/1600 to suit your work. It smoothly handles everything from quick cursor movement on large screens to general office tasks. Unlike a typical mouse, you don't need to move the mouse itself, allowing for precise pointing. Furthermore, it features 6 practical buttons, including "forward/back" buttons for efficient web browsing and a DPI change button, significantly improving work efficiency. (*1. Horizontal scrolling is not supported. 2. Separate software is required for button assignment. 3. Not suitable for tasks requiring extremely precise cursor control, such as image editing or CAD design.) ✅【USB-C Rechargeable & 1-Year Warranty】This eco-friendly rechargeable mouse features a large 450mAh battery. A single full charge provides up to 70 hours of continuous use, smartly reducing the hassle and cost of replacing disposable batteries. It is equipped with a low power indicator light to prevent sudden power outages during business trips or travel. Genuine ProtoArc products come with a "1-year manufacturer's warranty". If you experience any initial defects or malfunctions, please feel free to contact us by email. This next-generation trackball mouse combines comfortable operation and functionality that are gentle on the wrist. Its ergonomic design ensures a comfortable grip that reduces strain on the wrist, making it ideal for extended PC use. It supports both 2.4GHz wireless connectivity via USB receiver and Bluetooth, allowing you to choose the best connection method for your environment. The built-in 450mAh battery provides up to 70 hours of continuous use on a single full charge, eliminating the stress of frequent charging. Furthermore, it features side-mounted "forward" and "back" buttons for dramatically faster web browsing, and a silent click design for focused work without disturbing others. The sensor is highly responsive, and the pointer movement speed (DPI) can be smoothly switched between 200/400/800/1200/1600 DPI with a single button, adapting to various uses from office work like Excel to navigating large screens. This high-performance wireless mouse prioritizes practicality and comfort, dramatically improving the efficiency of your daily desk work.