Ocean Reef GSM Cube3
Ocean Reef GSM Cube3 is backordered and will ship as soon as it is back in stock.
Pickup currently unavailable at In Store
Ocean Reef GSM Cube3 is backordered and will ship as soon as it is back in stock.
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Product Information
The Ocean Reef GSM Cube3 is a wireless and hardwired diver communication unit built for use with Ocean Reef Integrated Diving Masks (IDMs), designed to work three different ways: wireless, hardwired, or interfaced to a VHF radio, so a diver can stay in voice contact underwater and with the surface.
Who it is for
The GSM Cube3 suits divers who need reliable voice communication during guided dives, instruction, technical dives, or any operation where staying in contact with a surface team or dive buddy matters. It is built to connect to the ALPHA PRO X DIVERS surface unit for full duplex, hands-free cable communication, and it can also be linked to a separate interface unit so a diver can talk to a boat or shore team over VHF radio once on the surface.
Key details
- Three communication modes: wireless, hardwired, and VHF-interface
- Permanent wireless receiver, always on and listening on Channel 1
- PTT (push-to-talk) button activates wireless transmission on Channel 1
- Six-pin waterproof connector allows connecting and detaching cable communication while underwater
- Hardwired connection to the ALPHA PRO X DIVERS surface unit gives full duplex, hands-free communication
Compatibility and sizing
The GSM Cube3 is designed to work with Ocean Reef Integrated Diving Masks (IDMs), the ALPHA PRO X DIVERS surface unit for hardwired use, and a separate interface unit for connecting to a VHF radio for surface communication.
DiveCatalog.com is an authorized Ocean Reef dealer and a dive shop in Irvine, California, since 2003. Call or chat with us if you have questions about mask compatibility or fitting the GSM Cube3 into your dive communication setup.
- Three-way communication: works wireless, hardwired, or interfaced to a VHF radio.
- Always-on wireless receiver: stays in permanent receiving mode on Channel 1.
- Push-to-talk transmission: PTT button activates wireless transmission on Channel 1.
- Hardwired full duplex option: connects via cable to the ALPHA PRO X DIVERS surface unit for hands-free, full duplex communication.
- Waterproof six-pin connector: lets a diver connect or detach cable communication while underwater.
- VHF radio interface: connects to a separate interface unit to enable surface communication over VHF radio.
- Built for Ocean Reef IDMs: designed to pair with Ocean Reef Integrated Diving Masks.
| Communication modes | Wireless, hardwired, VHF-interface (3-in-1) |
| Wireless channel | Channel 1 |
| Transmission control | PTT (push-to-talk) button |
| Connector type | Six-pin waterproof connector |
| Hardwired compatibility | ALPHA PRO X DIVERS surface unit (full duplex, hands-free) |
| Surface radio compatibility | VHF radio via separate interface unit |
| Mask compatibility | Ocean Reef Integrated Diving Masks (IDMs) |
| Brand | Ocean Reef |
⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Frequently Asked Questions
Can the Ocean Reef GSM Cube3 be used to talk to a boat or surface team?
Yes. The GSM Cube3 can be connected to a separate interface unit that links it to a VHF radio, allowing a diver to communicate with a boat or shore team over VHF once on the surface. This is one of its three communication modes, alongside wireless and hardwired.
What is the difference between wireless and hardwired modes on the GSM Cube3?
In wireless mode, the GSM Cube3 is a permanent receiver that stays listening on Channel 1, with a PTT button to transmit. In hardwired mode, it connects by cable to the ALPHA PRO X DIVERS surface unit for full duplex, hands-free communication without needing to press a button to talk.
Can a diver switch between wireless and cable communication underwater?
Yes. The GSM Cube3 has a six-pin waterproof connector specifically designed to let a diver connect or detach the cable communication link while underwater, so they can move between hardwired and wireless modes as needed during a dive.
What masks is the GSM Cube3 compatible with?
The GSM Cube3 is built to work with Ocean Reef Integrated Diving Masks (IDMs). If you are unsure whether it will pair with a specific Ocean Reef mask you already own or plan to buy, contact DiveCatalog.com and we can confirm compatibility for your setup.












