Right at the start: The neckband slips off when training or running. Battery life with NC enabled is very short. The battery sends low battery warnings every 2 minutes from 40%. . 40% before shutting down after 20 minutes. Poor radio reception, movement over 20 feet will cause a shutdown, turning your head and slightly blocking the controls on the left will also cause a power outage. Almost a year later: Microphone stopped working Rubber cover for mUSB no longer closes. The battery life is 3 hours of operation. Final thoughts: too expensive to be so disposable. Not designed for intensive training. The battery has a significantly reduced capacity in less than 1 year. Sound is great when NC is on, but battery life is disappointing. No headset for the whole day.
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