The Solidcom SE Pro 4S 4-Person Full-Duplex Single-Ear Headset Intercom System 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 1.9 GHz frequency range and features a lightweight design, Environmental Noise Cancellation, resistance to dust 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 additional remote headsets to accommodate a total of 9 users at once.