Hollyland Solidcom C1 Cuffie Wireless Sistema Interfonico 4 Persone Full Duplex
Hollyland Solidcom C1 Wireless Headset Intercom System 4-Person Full Duplex 1100ft Team Communication Group Talk Single-Ear Headset with 1 Master & 3 Remote Headsets. You can add more remote headsets to build a 8-user system without a HUB.