Wireless underwater transceiver unit with a range of operation of 200-250 meters and an autonomy of approx. 30 hours in receiving mode (calm sea water).
The GSM Gdivers' light weight, powerful single channel communication system, and "push to talk" communication system make them the ideal addition to any training class or guided tour for added safety and fun for divers!
The unit uses the same frequency as all other OCEAN REEF units and the majority of popular wireless communication devices.
When the battery is low, the GSM Gdivers uses a 9V alkaline battery and has a "low battery" alarm that beeps every 30 seconds.