ProtoArc
ProtoArc EM11 NL
Ideal for: Small to medium hands switching between several devices
Measure your hand to the middle fingertip and check that the wheel and buttons are within reach. ProtoArc's roughly 19 cm guide is not a comfort guarantee.
Before buying, check the exact model, price and availability on Amazon Spain; we have not verified the current offer.
View on Amazonfor ProtoArc EM11 NL (opens in a new tab)Buying summary
Best useSwitching across three devices via two Bluetooth channels and a USB-A receiver, if ProtoArc's suggested size fits your hand.
Avoid ifYou need wired use, programmable buttons or working forward and back buttons on macOS.
Direct alternativeThe Trust Verto Wireless uses a USB receiver and two AAA batteries, without Bluetooth device switching.
Verified limitationsBefore buying, confirm the EM11 NL variant; the current Amazon Spain listing, price and stock have not been verified. · ProtoArc's page gives conflicting Bluetooth versions, so no specific version is stated here. · ProtoArc's FAQ says the forward and back buttons do not work on macOS. USB-C is for charging; wired mouse operation has not been confirmed. · EM11 NL has no RGB lighting; the EM11 without NL is a different model. · ProtoArc calls the main clicks quiet. One independent reviewer found the wheel and side buttons audible; this is not a measurement of every unit.
How this product is assessed
- We compared ProtoArc's product page and FAQ with independent reviews of the EM11 NL, consulted on 30 September 2026. We have not tested the mouse or measured its button noise.
Technical specs
Shape and size
| Shape | Vertical |
|---|---|
| Hand | Right |
| Length | 138 mm |
| Width | 69.2 mm |
| Height | 68.1 mm |
| Weight | 112 g |
Connection and power
| Bluetooth | Yes |
|---|---|
| Compatible receiver | USB-A 2.4 GHz |
| USB wired use | n/a |
| Device switching | Yes |
| Power | Rechargeable battery |
| Quiet clicks | Yes |
Good fit
- People moving between a work laptop, desktop and another device who are happy to press the switch under the mouse to change channels.
- Small or medium hands within ProtoArc's indicative under-19 cm guide; check whether you can reach the wheel and buttons without stretching.
- People who prefer charging a battery to replacing disposable cells.
Not ideal for
- Anyone who needs wired USB operation rather than charging alone.
- People who need button remapping or a free-spinning scroll wheel.
- Anyone needing every control to be quiet in a shared room; the manufacturer's quiet-click claim concerns the main buttons.
Strengths
- Two Bluetooth channels and a 2.4 GHz USB-A receiver for three devices, selected manually from the underside.
- A 500 mAh rechargeable battery and USB-C charging, according to ProtoArc.
- Three published sensitivity settings at 1000, 1600 and 2400 DPI.
- ProtoArc describes the main clicks as quiet; a review of this model shows an underside slot for storing the receiver.
Weaknesses
- USB-C data operation is not confirmed; charging does not establish wired mouse use.
- The wheel has distinct steps rather than free spin, according to the FAQ; one reviewer found the wheel and side buttons more audible than the main clicks.
Verified sources
- protoarc.comofficial source · checked 2026-09-30
- protoarc.comofficial source · checked 2026-09-30
How vertical mice differ and when to consider one
Published specifications checked on 2026-09-30. No hands-on scores are assigned. “n/a” means the data has not been verified.