# エレコムワイヤレストラックボールマウス IST PLUS (アイエスティー プラス) ボールローラー Bluetooth×2 無線2.4GHz×1 マルチ接続 Windows

> A thumb-operated wireless trackball from ELECOM with a ball roller support, three-device multi-connection over two Bluetooth channels and one 2.4GHz channel, and three onboard profiles.

Tags: mouse, elecom, m-it10mrsabk, trackball, bluetooth, wireless
Source: https://www.amazon.co.jp/dp/B0H1W2NG3L
Article page: https://web-autoai.com/articles/ist-plus-bluetooth2-24ghz1-windows?lang=en

Prices and ratings change over time — check the article page for the current values.

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## Overview
The ELECOM IST PLUS is a wireless trackball that you drive with your thumb rather than your fingertips. It carries the model number M-IT10MRSABK and ships in black. Because the cursor moves with a ball instead of a sliding body, it suits desks where there simply is not room to sweep a mouse around.
What sets this version apart is the ball roller support. The ball is held by a structure that lets it rotate freely through 360 degrees while reducing friction, which is meant to translate into a smoother roll. That support unit can be lifted out, and the bundled removal tool lets you swap in an artificial ruby or bearing unit. Those replacement parts are sold separately, so the box itself gives you the tool rather than the upgrade hardware.
On the wireless side you get two Bluetooth channels and one 2.4GHz channel, for three registered devices in total. A button on the side of the body handles switching and pairing, and a three-colour LED tells you which channel is live. Button assignments are stored in onboard memory, with room for three profiles, so your layout follows you between machines.

## Connectivity & Compatibility
There are two connection methods here: Bluetooth and 2.4GHz wireless. Two devices can sit on Bluetooth while one occupies the 2.4GHz link, which covers a mix of a laptop, a desktop and a tablet. The listed operating systems are Windows, macOS, iPad, Chrome and Android.
For the 2.4GHz side, the package includes an ELECOM Bridge E USB receiver that can hold up to seven registered devices. It is built to reduce interference and keep the link steady. Security is handled through BLE Security Mode 1, Security Level 4, with passkey-based authentication between the mouse, keyboard and host.
Because assignments live in onboard memory, switching the active device does not reset your button layout. That matters most when you move between several machines in a single work session.

## Product Info
The release date is 20 June 2026. ELECOM lists the body at 130 mm long, 51 mm wide and 2.5 mm high, with a weight of 119 g. Check the retailer's page for the latest price.
Positioning-wise, this is a mid-tier pick for someone who has already used an entry trackball and now wants more control over the support mechanism and the connection setup. Being able to change the ball support, together with three-device switching and onboard profiles, is what separates it from cheaper options.

## Best Use Cases
* People on a cramped desk who cannot spare the sweep space for a mouse: a thumb trackball stays put, and the ball roller support keeps the roll smooth. Not the right pick if raw cursor speed is your top priority.
* Anyone juggling a work PC, a home PC and a tablet: two Bluetooth channels plus one 2.4GHz channel, with assignments saved on the device, means no re-configuring after each switch. Overkill if you only ever use one machine.
* Long-session workers trying to take load off the wrist: the stationary body and thumb control suit continuous work in a tight footprint. If thumb-driven movement does not agree with you, a different trackball style is the better route.

### Product Disclosure (Amazon)
- Model: M-IT10MRSABK
- ASIN: B0H1W2NG3L
- Note: This article covers a manufacturer-made product based on Amazon listing details.