GSM G.Divers 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 G.Divers the perfect addition to any training class or guided tour, for extra safety and fun! The GSM G.Divers uses a 9V alkaline battery and has a “low battery” alarm which beeps every 30 seconds when the battery is low.
