The Solidcom SE Pro 9S is a full-duplex single-ear headset intercom system built for small- and medium-sized production teams that need dependable crew communication without an oversized system to manage. This 9S configuration ships with 1 master headset and 8 remote headsets, and the system expands to a total of 11 users as more remotes are added. It operates in the 1.9 GHz band with frequency-hopping technology, and Environmental Noise Cancellation keeps dialogue clear against background noise. The lightweight headsets have a dust- and water-resistant housing, rated against rain and splashes, and each remote runs up to 10 hours on a single charge, with rechargeable batteries and an 8-slot charger included to keep the whole team ready between calls. It suits a range of settings, from commercial video production through to waterside operations.