OCEAN REEF has designed a communication system which is easy to use, lightweight, and within a recreational divers budget. The OCEAN REEF underwater communication system adds a whole new dimension to dive safety and enjoyment by connecting divers with each other and with partners on the surface.

Wireless underwater transceiver unit, with the autonomy of approx. 30 hours in receiving mode, and range of operation of 200-250 meters (calm sea water), Light weight, powerful single channel and push to talk communication system make the GSM Gdivers the perfect addition to any training class or guided tour, for extra safety and for fun! The unit operates on the same frequency as all other OCEAN REEF units and most popular wireless communication units on the market.The GSM Gdivers uses a 9V alkaline battery and has a low battery alarm which beeps every 30 seconds when the battery is low.
Each GSM G.divers comes with the NACS (Neptune Adjustable Communication Support)