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ProtoArc EM11 NL Wireless Ergonomic Vertical Mouse, Rechargeable, Black | 58° vertical design supports a natural wrist posture, connect 3 devices via Bluetooth/2.4G USB-A, 500mAh USB-C rechargeable.
ProtoArc

ProtoArc EM11 NL Wireless Ergonomic Vertical Mouse

Bottom line: The ProtoArc EM11 NL Wireless Ergonomic Vertical Mouse ($20.79 on Amazon as of 2026-10-07): 58-degree vertical angle keeps the wrist neutral instead of flat-pronated; main trade-off: fits hand lengths under 7.5 inches only; large hands should size up.

$20.79

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Buy on Amazon — $20.79 Compare to similar gaming peripherals

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For keyboards, mice, headsets and other PC peripherals, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-07. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ 58-degree vertical angle keeps the wrist neutral instead of flat-pronated
  • ✓ Pairs 3 devices at once: 2 Bluetooth channels plus 2.4G USB-A receiver
  • ✓ 500mAh rechargeable Li-Ion over USB-C, no disposable AA batteries
  • ✓ Three DPI steps (1000/1600/2400) for laptop panels or high-res monitors

Cons

  • ✗ Fits hand lengths under 7.5 inches only; large hands should size up
  • ✗ No USB-C receiver in the box, the Type-C cable charges only
  • ✗ Back and forward thumb buttons do not work on macOS
  • ✗ No button remapping; all buttons are fixed-function with no software

Manufacturer description

The ProtoArc EM11 NL is a wireless vertical mouse built around a 58-degree tilt that keeps your wrist straight instead of pronated flat against the desk, which is the position that drives most long-session mouse strain. It is sized deliberately: ProtoArc designed the EM11 NL for hand lengths under 7.5 inches, so measure before you order rather than assuming a universal fit. Connectivity covers three devices at once, with two Bluetooth channels plus a 2.4G USB-A receiver, and it works with Windows 8 or newer, macOS 10.12 or newer, and Android 4.3 or newer. A 500mAh Li-Ion cell recharges over…

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SpecPicks Verdict

SpecPicks scored ProtoArc EM11 NL Wireless Ergonomic Vertical Mouse using a rating × review-volume × price-fit model applied to published specs and reviews across the gaming peripherals category. ProtoArc's gaming peripherals lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for gaming peripherals of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

Will the ProtoArc EM11 NL fit my hand?

ProtoArc designed the EM11 NL for hand lengths under 7.5 inches (19.05 cm). Measure from your wrist crease to the tip of your middle finger before ordering; larger hands will overhang the shell and lose the ergonomic benefit.

Does it work with a Mac?

Yes, it supports macOS 10.12 or higher over Bluetooth or the 2.4G USB-A receiver. One limitation: the back and forward thumb buttons are not compatible with macOS, so you get left, right, wheel, and DPI switching only.

How do I connect it to more than one computer?

The EM11 NL holds three simultaneous pairings: two Bluetooth channels and one 2.4G connection through the included USB-A receiver. You switch between them on the mouse, so a laptop, desktop, and tablet can all stay connected.

Does it take batteries or does it charge?

It charges. There is a built-in 500mAh Li-Ion battery and an included Type-C cable for charging. Note that the Type-C cable is charge-only; it does not carry data and there is no USB-C receiver included.

Is it actually quiet enough for an office or video calls?

The left and right click buttons use silent switches. The middle scroll wheel and the back/forward thumb buttons are not silenced, so you will still hear those. For primary clicking during calls, it is effectively quiet.

Key Features

  • Connection Guide: This mouse pairs via Bluetooth or the included USB-A receiver only. Note: A USB-C receiver is not included. The Type-C cable is for charging
  • Connect up to 3 Devices: This ergonomic wireless mouse features dual Bluetooth connectivity and 2.4G USB-A connectivity modes for simultaneous connection of up to 3 different devices, and is compatible with Windows 8, Windows 10 or higher, Mac OS X 10.12 or higher, and Android 4.3 or higher
  • Rechargeable Ergonomic Mouse: The Bluetooth Vertical Mouse has a built-in 500mAh Li-Ion battery that can be conveniently recharged using the included Type-C cable(The Type-C cable is for charging only)
  • Ergonomic Vertical Design: The ergonomic mouse wireless keeps your wrist naturally straight, putting your forearm and wrist in a more natural and relaxed position, which can reduce discomfort and strain, helping to improve productivity and reduce the risk of repetitive strain injuries compared to a standard mouse. Warm tips: We encourage you to relax your palm and hold the mouse naturally when using a vertical mouse
  • Perfect Fit for Small to Medium Hands: Designed specifically for hand lengths under 7.5 inches (19.05 cm), the EM11 NL reduces wrist strain by aligning with your natural grip. Please measure the size before ordering for a better fit and more comfort
  • Learning curve: Since it takes a learning curve to get used to the shape when using our ergonomic mouse for the first time, it may cause inconvenience to your mouse grip, We recommend that you take 1-2 weeks to get used to it, as many users find that it will help reduce the pressure and pain on your wrist caused by long-term use of the mouse and improve comfort

Full Specifications

BrandProtoArc
ColorBlack
Range10 meters
ThemeErgonomics, Computing
FinishGlossy
Weight2.4g
Model NameEM11 NL
Style NameModern
Unit Count1 Count
ConnectivityBluetooth, USB-C, 2.4GHz
Model NumberEM11 NL
Power SourceBattery Powered
CompatibilityAndroid, Mac
Built-In Media1 x 2.4G USB-A Receiver, 1 x ProtoArc Rechargeable Bluetooth Ergonomic Mouse, 1 x Type-C Charging Cable(The Type-C cable is for charging only), 1 x User Manual
Button Quantity7
Connection TypeWireless
Mfr Part NumberProtoarc B0CX18LHWS
Special FeatureErgonomic Design, Multi-Device, Rechargeable, Vertical Design, Wireless
Antenna LocationOffice
Connection GuideThis mouse pairs via Bluetooth or the included USB-A receiver only. Note: A USB-C receiver is not included. The Type-C cable is for charging
Full listing titleProtoArc EM11 NL Wireless Ergonomic Vertical Mouse, Rechargeable, Black | 58° vertical design supports a natural wrist posture, connect 3 devices via Bluetooth/2.4G USB-A, 500mAh USB-C rechargeable.

Ready to buy?

ProtoArc EM11 NL Wireless Ergonomic Vertical Mouse, Rechargeable, Black | 58° vertical design supports a natural wrist posture, connect 3 devices via Bluetooth/2.4G USB-A, 500mAh USB-C rechargeable. is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $20.79

*Price sourced from Amazon.com. Last updated 2026-10-07. Price and availability subject to change.

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ProtoArc EM11 NL Wireless Ergonomic Vertical Mouse, Rechargeable, Black | 58° vertical design supports a natural wrist posture, connect 3 devices via Bluetooth/2.4G USB-A, 500mAh USB-C rechargeable.
$20.79
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