ZeroNoise Pit-Link phone headset. Updated for the new season, these high quality headphones can be used directly with an Android or I-phone via the USB-C connection. This can then be connected with the ZeroNoise GSM amplifier, enabling licence free, pit to car communications. These headsets can also be used with the ZeroNoise Pit-Link kart training communication system, the perfect tool for kart driver to pitlane trainer communication. They feature high quality hearing protection in a very comfortable, adjustable, full earcup headset design, with a flexible boom with dynamic noise cancelling, combined with high efficiency speakers for superb call quality. The speakers can also be used to listen to music or audiobooks during time out in a noisy environment if you get the chance! Headsets fitted with a Push To Talk switch (PTT).