The Solidcom SE 4S Global 4-Person Full-Duplex Single-Ear Noise-Canceling Headset Intercom from Hollyland offers small- and medium-sized production teams a cost-effective yet powerful communication solution. This configuration includes 1 master single-ear headset and 3 remote single-ear headsets. The system operates in the 2.4 GHz frequency range and features a lightweight design, Environmental Noise Cancellation, resistance to water and wind, and extended battery life—empowering team members to collaborate effectively in various environments, from commercial video production to waterside operations. The system can be expanded with an additional remote headset to accommodate a total of 5 users at once.