wireless radio intercom kit 4 pre-configured Ultralite Single-ear headsets. The system does not require an Ultralite Hub to operate (up to 5 stations). Includes: - 1x single-ear master headset - 3x single-ear slave headset - 4x rechargeable batteries - 1x carrying bag - 1x 8-Port Charging Station. Operating distance 304.8 metres - Headsets' Mic Boom rotatable 270°.