Featuring dual-mic Environmental Noise Cancellation (ENC) for use in loud environments, the Hollyland Solidcom C1 Pro Wireless Remote Headset Single-Ear is a full-duplex DECT intercom headset engineered to provide clear audio and all-day wearing comfort in a true-wireless design with no bodypack or hub required. This single-ear remote headset is sold without a master headset, allowing you to expand an existing Solidcom C1 or C1 Pro system or replace a lost or damaged headset.