Ocean reef GSM Mercury Communication System

Unleash the pinnacle of underwater communication. The GSM Mercury system fuses the best of four OCEAN REEF units into one, delivering extended range, stereo-like sound, digital clarity, and incredible battery life. Enjoy crystal-clear, dual-channel conversations over 800ft/250m. Its innovative foldable design, 30-hour USB-rechargeable battery, and hands-free DAT mode offer unparalleled convenience. Compatible with other units and featuring an intuitive voice menu, this is the ultimate, easy-to-pack communication upgrade for any diver