Made for drivers, the Rand McNally ClearDryve 180 2 in 1 Headphones bring together exceptionally clear stereo sound with all-day comfort. They easily convert from a driver-safe single-ear headset into premium dual-ear stereo headphones in just seconds. The interchangeable head pad and earcup make it easy to switch between single-ear and dual-ear functionality. The revolutionary, pliable boom microphone is completely flexible and can be worn on the left or right side. The microphone can be flipped up to mute when not in use. Active noise cancellation means calls and music are crystal clear—no matter the engine and wind noise. In fact, special signal processing removes more than 90% of noise reaching the microphone, so those on the other end hear you and not your cab. And the ClearDryve 180 is built for the long haul. A single charge provides more than 20 hours of talk and music playback time and more than 200 hours standby time when connected wirelessly.