v.2025-11-02
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protarc EM01 NL

  1. Purchased 2025-11 for 37$ with purple track ball.
  2. Things I like more on the protoarc than the MX Ergo.
  3. Cheaper, Pick a trackball color, 3 device connectivity, USB C, feels pretty close to ergo.
  4. I still prefer the palm rubber coating for grip and tactile click on the mx-ergo.
  5. I think this mouse beats the m575 easily.
  6. For feel MX Ergo still wins becuase of rubber palm grip.

Links

  1. amazon link
  2. protoarc web site

Connections

The connections om this are way better than the ergo.
Not only does it connect to 3 devices it has a light up indicator to show what connection you are on when you click the button.
MX Ergo needs to copy this.
# Device Conection Type Notes
1 Veermeer Desktop 2.4GZ Dongle Dongle is black and has Protoarc on it
2 Laptop Bluetooth Gray Ball on Red Mouse is crap, ordered new ball.
3 Work Laptop Bluetooth

Notes

  1. Same tilt bottom with rubber coating as MX Ergo
  2. I don't think this bottom can be fully seperated which is fine
  3. USB C Rechargeable Li-Po (900 mAh) battery
  4. 2 Blue tooth and 1 USB 2.4 GHZ, so 3 devices.
  5. I got it with Purple track ball.
  6. I swapped the purple ball in this to the mx ergo.
  7. The silver MX Ergo ball works fine in this.
  8. Now I can differentiate my MX Ergos.

Bluetooh

turn it on, press the channel button to select slot 2 or 3, and hold it for 3–5 seconds until the light flashes quickly. Then, open your device's Bluetooth settings and select "EM01 NL" to connect.