ProtoArc EM11 NL Vertical Mouse, 58° Design, Bluetooth and 2.4G
Product description
For right-handed users with small to medium hands who want a mouse shaped around a more natural wrist position, the ProtoArc EM11 NL pairs a 58° vertical design with wireless connectivity.
Its upright grip is designed to keep the wrist and forearm in a more natural position than a conventional horizontal mouse. The shape is intended for hands under 7.5 inches long.
Connect up to three devices using dual Bluetooth and the included USB-A receiver. Switch between a computer, tablet, or phone setup without reconnecting each time.
How it fits
The EM11 NL is a right-handed mouse designed for small to medium hands. Its 58° angle creates a handshake-style grip, which can help keep the wrist straighter while you work. For a more comfortable fit, measure your hand length before choosing: the recommended hand length is under 7.5 inches.
The vertical shape feels different from a standard horizontal mouse, so getting used to the grip may take time. A relaxed palm and natural hold are recommended. It makes sense if you want to change how your hand rests on the mouse while keeping familiar desktop controls close at hand.
What you’ll notice day to day
Use Bluetooth for compatible devices or plug in the included USB-A receiver for a 2.4G connection. The mouse can connect to up to three devices across these modes, making it practical to move between a computer and a tablet or phone without pairing again each time. It’s a wireless alternative to a mouse designed for one device or a traditional horizontal shape.
Three selectable sensitivity levels—1000, 1600, and 2400 DPI—let you adjust pointer movement for different tasks. The left and right buttons are designed for quiet clicks, while the back and forward buttons provide quick page navigation. The back and forward buttons are not compatible with Mac, and those buttons and the scroll wheel are not silent. Buyers report varied experiences with getting used to the grip and button responsiveness, so these are useful details to consider alongside the vertical shape and multi-device setup.
Technical details
- Model: EM11 NL
- Type: Wireless ergonomic vertical mouse
- Hand orientation: Right-handed
- Connectivity: Dual Bluetooth and 2.4G USB-A receiver, connects to up to three devices
- DPI: 1000, 1600, or 2400
- Buttons: 7
- Tracking: Optical
- Battery: Built-in 500mAh rechargeable Li-ion battery
- Charging: USB-C, included cable is for charging only
- Dimensions: 5.43 x 2.72 x 2.68 in
- Weight: 250 g
- Compatibility: Windows 8 and later, macOS X 10.12 and later, Android 4.3 and later
What to clarify
Which hand size is it designed for? The EM11 NL is intended for small to medium hands under 7.5 inches long. Measuring your hand helps you assess the fit before choosing a vertical mouse.
Can it connect to more than one device? Yes. It supports up to three connections through dual Bluetooth and the included 2.4G USB-A receiver, so you can switch between devices without pairing again each time.
Can I customize the buttons or use every button on a Mac? The buttons are not programmable, and the forward and back buttons are not compatible with Mac. The left and right buttons are quiet-click, the scroll wheel and navigation buttons are not silent.
Buying verdict
Choose the EM11 NL for a right-handed, small-to-medium-hand setup that puts a vertical grip, rechargeable power, and connections for up to three devices in one mouse. Its 58° design and adjustable DPI make it especially suited to everyday computer work where wrist position and easy device switching matter.