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Small black USB dongle with single LED indicator

CRU

CRU Wiebetech MJ-1 Mouse Jiggler

SKU CH-BD4H-VCKMX

Keeps a computer awake by simulating mouse movement via a USB HID device with no software required, featuring an LED minute counter

  • Prevents sleep mode without installing software
  • Registers as a standard Human Interface Device
  • LED indicator tracks elapsed minutes of activity
  • Works immediately on any USB port
  • Keeps sessions alive during long tasks

What it is

The CRU WiebeTech MJ-1 Mouse Jiggler is a USB device that generates continuous cursor movement. It registers as a standard Human Interface Device so the operating system treats it like an ordinary mouse. A single LED counts the minutes the unit has been active. No driver or configuration software is required.

Who it suits

This gadget suits anyone who needs a workstation to stay awake during long-running tasks, presentations or monitoring duties where OS sleep policies cannot be changed. It is not for users who require programmable movement patterns, adjustable timing intervals or any form of scriptable control over the cursor behaviour.

Deciding specification

The only control is the single LED that shows elapsed minutes; there are no buttons, switches or software settings to alter the jiggle action. If you need configurable movement or the ability to pause the device without unplugging it, this model will not meet that requirement.

How it compares

Measured against everything we stock in USB Hubs, Extenders & Gadgets, at today’s prices. Recalculated every night.

Price $257.99
Pricier than about 93% of the 105 comparable items (median $24.99).

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Specifications

Product
Brand nameCRU

Questions about this item

Does the MJ-1 have different versions or capacities I need to choose between?

The CRU Wiebetech MJ-1 is offered as a single hardware version with no selectable capacities or models.

What does the constant mouse activity actually do once the device is plugged into my computer?

It registers as a Human Interface Device and generates subtle cursor movement that stops the operating system from triggering sleep mode or screen savers.

Which USB interface does the MJ-1 use and what does that limit in practice?

It connects via standard USB and is recognised as a generic HID, so it works on any host with a USB port and requires no special drivers or software.

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