Hollyland Solidcom C1 Pro Wireless Intercom System 10 Headsets
Finally, the Solidcom C1 Pro Roaming Hub is expandable and backward-compatible with previous Solidcom systems. Hollyland HL-Solidcom C1 Pro - Roaming Hub 10S-G Full-Duplex Wireless Intercom System 10 Single-Ear Headsets G-Mount 1.9 GHz.