Research reference
Logitech M705 Marathon Wireless Mouse — Dark Silver
The M705 Marathon mouse combines a sculpted right-hand body with a scroll wheel that can switch to a free-spinning mode for longer documents. The selected Dark Silver package is Logitech part 910-001935, identified in its official product catalog. It uses a USB Unifying receiver, and Logitech describes battery life of up to three years under its stated usage conditions. That duration is a manufacturer claim, and we have not tested it. The photograph shows the actual dark-silver unit with the older Logitech wordmark and matching Unifying receiver. Compare the shape and placement of thumb controls against your grip, and check software support before relying on customized buttons.
The recorded specifications and research sources are preserved below.
