Microsoft Arc Touch Mouse - Flexible Design, Touch to Scroll, BlueTrack Technology. The 2.4 GHz wireless USB Nano Transceiver can connect wirelessly right out of the box with virtually no interference and has up to a 30-foot wireless range. A green light flashes to show the battery is working, and then turns off when saving battery life Click. Tap. Flick. Control. Unlike left-click and right-click, there is no standard for what the middle mouse button does. Curve to turn on. Flatten to turn off. No button to switch.
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