Volume Control: Volume setting for each diver and tender to their individual comfort level
Wiring Modes: Both divers can be set up on 4-Wire Mode or 2-Wire Mode or any combination of the two modes
Microphone Adjustment: Ability to use both dynamic and pre-amplified diver microphones with a unique circuit that detects microphone type and automatically adjusts volume levels
Weatherproof: Weatherproof panel microphone for greater voice intelligibility
System Charge: Communicator can be left on charge indefinitely without damage to the batteries or communicator (/23 and /24 versions only). Communicator can be operated directly from the charger where AC power is available (/23 and /24 versions only)