The GSM DAT™ underwater transceiver unit incorporates the latest innovations in underwater ultrasonic 1-way radio communication. The GSM DAT™ is designed for use on the Neptune full face masks, but can be used on any full face masks equipped with a standard DIN female connection. The standard frequency (channel 1) is the same for all Neptune System units, so it is possible to communicate with any other GSM DC™, GSM DAT™, GSM, M-101A receive units, M-105 Digital surface units, and all previous surface units (M-103, M-104, M-105).

• The GSM DAT™ is a single channel unit
• DSP microprocessor
  Removes distorted frequencies and making communication loud and clear.
• The Mask is NOT Include in the price