How do I connect a wire;ess mouse

Ken Upton 0 Reputation points
2026-11-10T17:58:35.2466667+00:00

I bought a Logitech M705 Marathon Wireless Mouse. There is no USB, and I cannot get my Dell desktop to connect to it. I've done everything That I know how. What am I doing wrong?

Windows for home | Windows 11 | Devices and drivers
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  1. Hendrix-V 20,825 Reputation points Microsoft External Staff Moderator
    2026-11-11T06:32:38.4166667+00:00

    Hi Ken Upton,

    At this point, I wouldn’t recommend spending more time changing settings on the Dell. If there was no receiver supplied with the M705, please check with the retailer about a replacement or exchange.

    The M705 requires a compatible receiver to communicate with the computer, so changing Windows Bluetooth settings would not resolve a missing-receiver situation.

    I hope this points you toward the quickest resolution.

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  2. AI answer

    2026-11-10T17:59:37.52+00:00

    The Logitech M705 connects through a Logitech Unifying USB receiver, not Bluetooth, so it cannot connect to the Dell desktop unless that small receiver is present and plugged into a USB port.^1^

    Connect the mouse

    1. Turn the mouse over and switch it off.
    2. Open the battery compartment.
      • Check for a very small USB receiver stored inside.
      • Also check all packaging; the receiver is easy to overlook.
    3. Install or reseat the batteries, close the compartment, and turn the mouse on.
    4. Plug the receiver into a USB port on the Dell desktop, preferably a rear USB port.
    5. Wait briefly while Windows detects the receiver. The mouse should then begin working automatically. Logitech’s setup guide shows the required receiver-based connection.^2^

    Do not try to add this M705 through Settings > Bluetooth & devices > Add device > Bluetooth; this model is not presented as a Bluetooth mouse.

    If the receiver is missing

    If there is no receiver in the battery compartment or packaging:

    • If the mouse was sold as new, contact the retailer and request the missing receiver or exchange the mouse.
    • Otherwise, contact Logitech Support for a compatible replacement Unifying receiver and the applicable pairing instructions.^3^
    • Do not buy an unspecified generic USB receiver; wireless receivers are not automatically interchangeable.

    If a receiver is already connected but the mouse still does not respond, test another USB port and install fresh batteries before contacting Logitech Support.

    References

    1. Logitech M705 Marathon Wireless Mouse with 3Y Battery Life
    2. Flores_M705_620-002699.004_qsg_934front - Logitech
    3. Logitech Customer Support & Business Support
    AI-generated content may be incorrect. Read our transparency notes for more information.

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