This heavy-duty, ATEX-certified headset has dual earphones, a flexible microphone boom with noise-compensating electret microphone and is optionally available with an ambient noise level limiter (ASR). For safety reasons, CeoTronics expressly recommends the use of headsets with level-limited ambient sound reception (ASR), to ensure sounds such as alarms always remain audible.

The CT-PTT Headset is intended for simplex operation with radios and is equipped with a large-format CT-HeavyDuty PTT key for signal transmission.