---
product_id: 605309696
title: "ProtoArc Wireless Bluetooth Trackball Mouse, EM03 Ergonomic RGB Rollerball Mouse Rechargeable Computer Laptop Mouse, 3 Device Connection&Index Finger Control for iPad, Mac, Windows-Black"
brand: "protoarc"
price: "฿259"
currency: THB
in_stock: false
url: https://www.desertcart.co.th/products/605309696-protoarc-wireless-bluetooth-trackball-mouse-em03-ergonomic-rgb-rollerball-mouse
store_origin: TH
region: Thailand
---

# 4 RGB modes 930mAh battery 44mm trackball ProtoArc Wireless Bluetooth Trackball Mouse, EM03 Ergonomic RGB Rollerball Mouse Rechargeable Computer Laptop Mouse, 3 Device Connection&Index Finger Control for iPad, Mac, Windows-Black

**Brand:** protoarc
**Price:** ฿259
**Availability:** ❌ Out of Stock

## Summary

> ✨ Elevate your workspace with style and comfort!

## Quick Answers

- **What is this?** ProtoArc Wireless Bluetooth Trackball Mouse, EM03 Ergonomic RGB Rollerball Mouse Rechargeable Computer Laptop Mouse, 3 Device Connection&Index Finger Control for iPad, Mac, Windows-Black by protoarc
- **How much does it cost?** ฿259 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/605309696-protoarc-wireless-bluetooth-trackball-mouse-em03-ergonomic-rgb-rollerball-mouse)

## Best For

- protoarc enthusiasts

## Why This Product

- Trusted protoarc brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Ergonomic Design:** Say goodbye to wrist strain with our index finger trackball!
- • **Triple Connectivity:** Seamlessly switch between three devices with a single button!
- • **Whisper-Quiet Operation:** Stay focused with silent clicks that won’t disturb your flow!
- • **Customizable RGB Lighting:** Set the mood with four vibrant RGB lighting modes!
- • **Long-lasting Rechargeable Battery:** Enjoy up to a month of use on a single charge!

## Overview

The ProtoArc Wireless Bluetooth Trackball Mouse EM03 is an ergonomic, rechargeable mouse designed for seamless multi-device connectivity. With a 44mm trackball for effortless cursor control, customizable RGB lighting, and a long-lasting battery, it enhances productivity while reducing wrist strain. Ideal for professionals using iPads, Macs, and Windows devices.

## Description

ERGONOMIC INDEX FINGER TRACKBALL: Equipped with a 44mm trackball, move your cursor with one finger movement instead of moving your wrist and arm. It will effectively reduce fatigue and strain for your wrist and arm. Not only work on flat surfaces, but also on your leg, sofa and other surfaces as well, especially on the narrow space, such as the messy desktop BLUETOOTH & 2.4G WIRELESS CONNECTION：PLUG and PLAY. This trackball mouse has triple connection modes. You can control three devices at the same time, switch freely between Android, tablet and Mac with just one button. Compatible with Windows, Android, Mac OS PC Laptop Desktop etc 4 RGB LIGHTING MODE: You can adjust 4 RGB color effects by one button. Rainbow Streaming Light(Default), Rainbow Breathing Light, Neon, Color Mixing Breathing Light. NOTE: The RGB backlit also can be turned off by clicking the light switch button, which can save battery power for the mouse RECHARGEABLE & ADJUSTABLE DPI: The Bluetooth RGB Trackball Mouse built-in 930mAh lithium battery. No need to change batteries. It can last 1 month per one full recharge with the lights off. Please remember to turn it off if you do not use it for a long time. 5 DPI levels (200/400/800/1200/1600 DPI) allows you to change the cursor sensitivity easily for more precise tracking QUIET CLICKING: Smooth frosted surface and quiet clicks can bring a better user experience and free your worry about bothering others and keep you stay focused while working. Note: it will enter auto sleep mode if you don't use it for a few minutes to save battery and click it, the mouse will enter working mode again

## Features

- ERGONOMIC INDEX FINGER TRACKBALL: Equipped with a 44mm trackball, move your cursor with one finger movement instead of moving your wrist and arm. It will effectively reduce fatigue and strain for your wrist and arm. Not only work on flat surfaces, but also on your leg, sofa and other surfaces as well, especially on the narrow space, such as the messy desktop
- BLUETOOTH & 2.4G WIRELESS CONNECTION：PLUG and PLAY. This trackball mouse has triple connection modes. You can control three devices at the same time, switch freely between Android, tablet and Mac with just one button. Compatible with Windows, Android, Mac OS PC Laptop Desktop etc
- 4 RGB LIGHTING MODE: You can adjust 4 RGB color effects by one button. Rainbow Streaming Light(Default), Rainbow Breathing Light, Neon, Color Mixing Breathing Light. NOTE: The RGB backlit also can be turned off by clicking the light switch button, which can save battery power for the mouse
- RECHARGEABLE & ADJUSTABLE DPI: The Bluetooth RGB Trackball Mouse built-in 930mAh lithium battery. No need to change batteries. It can last 1 month per one full recharge with the lights off. Please remember to turn it off if you do not use it for a long time. 5 DPI levels (200/400/800/1200/1600 DPI) allows you to change the cursor sensitivity easily for more precise tracking
- QUIET CLICKING: Smooth frosted surface and quiet clicks can bring a better user experience and free your worry about bothering others and keep you stay focused while working. Note: it will enter auto sleep mode if you don't use it for a few minutes to save battery and click it, the mouse will enter working mode again

## Product Details

- **Brand:** ProtoArc
- **Colour:** red
- **Connectivity technology:** Bluetooth
- **Special features:** Ergonomic Design
- **Movement detection technology:** Trackball

## Images

![ProtoArc Wireless Bluetooth Trackball Mouse, EM03 Ergonomic RGB Rollerball Mouse Rechargeable Computer Laptop Mouse, 3 Device Connection&Index Finger Control for iPad, Mac, Windows-Black - Image 1](https://m.media-amazon.com/images/I/61fcX0vX7VL.jpg)
![ProtoArc Wireless Bluetooth Trackball Mouse, EM03 Ergonomic RGB Rollerball Mouse Rechargeable Computer Laptop Mouse, 3 Device Connection&Index Finger Control for iPad, Mac, Windows-Black - Image 2](https://m.media-amazon.com/images/I/61hyvD+o+5L.jpg)
![ProtoArc Wireless Bluetooth Trackball Mouse, EM03 Ergonomic RGB Rollerball Mouse Rechargeable Computer Laptop Mouse, 3 Device Connection&Index Finger Control for iPad, Mac, Windows-Black - Image 3](https://m.media-amazon.com/images/I/71sQOOSslrL.jpg)
![ProtoArc Wireless Bluetooth Trackball Mouse, EM03 Ergonomic RGB Rollerball Mouse Rechargeable Computer Laptop Mouse, 3 Device Connection&Index Finger Control for iPad, Mac, Windows-Black - Image 4](https://m.media-amazon.com/images/I/71uhacz2rAL.jpg)
![ProtoArc Wireless Bluetooth Trackball Mouse, EM03 Ergonomic RGB Rollerball Mouse Rechargeable Computer Laptop Mouse, 3 Device Connection&Index Finger Control for iPad, Mac, Windows-Black - Image 5](https://m.media-amazon.com/images/I/71kAH72-hnL.jpg)

## Questions & Answers

**Q: Can this be wired so that the battery does not die in the middle of work?**
A: Yes, you can start charging it at anytime: the trackball will still function.  I've been able to plug in the USB-C cord after it's died, and it starts working immediately.

**Q: Is the support for this, owners manual, instructions, and software in English? I bought another one and EVERYTHING is in Japanese or Chinese.**
A: Mine is also entirely in English, and it took me less than 5 minutes to pair it in USB wireless mode for my laptop (less battery drainage for most gadgets than BT in my experience and my USB ports are rarely used anymore) and Bluetooth mode for my iPad (it's both far more precise and less tiring than doing everything with my fingertips and has the benefit of not getting prints on the screen). If you're already using USB ports, you would just be switching from channel 2 to 3 when pairing two different devices. The instructions are actually completely clear in both wording and the drawings... everything is accurate which by itself is almost a reason to 5* a product anymore. :)

**Q: It's movement is very jerky. How can I fix this?**
A: Mine had gotten a little jerky a couple of times. In both cases I cleaned the ball and the ball seat with a lint-free rag. Worked each time.

**Q: What are the dimensions of the trackball housing (entire device) -- length, width, and height? I have small hands, many trackball mice are too big.**
A: So first, you have the main body measurements:  it is 6in from front to back tip of the trackball chassis, 4in from side-to-side, and measuring from the base to the top of the ball and also to top of the 'hump' of the trackball body it is roughly 2 & 1/8in.

Now measuring the palm rest of the trackball, I used a flexible ruler and roughly from the bottom of the trackball chassis to the top of the right-mouse button, it is around 6.5in. 

To give you an idea of the distance to reach the top of the ball, from the bottom of the chassis to the top of the ball is around 6in.

Lastly, measuring from the middle of the left-mouse button where your thumb will usually sit or click, to the bottom of the trackball chassis, it is around 4in.

I can't add photos to show you the exact measuring lines I used, sorry!

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**Shop now:** [https://www.desertcart.co.th/products/605309696-protoarc-wireless-bluetooth-trackball-mouse-em03-ergonomic-rgb-rollerball-mouse](https://www.desertcart.co.th/products/605309696-protoarc-wireless-bluetooth-trackball-mouse-em03-ergonomic-rgb-rollerball-mouse)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-05*