Ocean Reef GSM CUBE3 R2 Underwater Communication
Ocean Reef GSM CUBE3 R2 Underwater Communication is backordered and will ship as soon as it is back in stock.
Select all options to view availability
Couldn't load pickup availability
How Our Preorder Process Works
How Our Preorder Process Works
Products with a preorder tag typically require additional time for processing, either due to manufacturing timelines or special shipping requirements. Some products may also be custom-sized or designed, which can extend the processing time. When you order products marked with a preorder tag, please be aware that shipping times may vary between 1 to 8 weeks, depending on the item. For example, Ocean Reef Full Face Mask typically ship within 10-14 days and Professional Surface Communication Units Dispatches in Approx. 45–60 Days.
If you have any questions about warranty, feel free to email us at info@divegearzone.com.
Delivery and Shipping
Delivery and Shipping
Currently, we offer shipping within theUnited Arab Emiratesand other Middle Eastern countries. We have also recently added selected international shipping destinations and are actively working to expand our delivery services worldwide.
We generally process orders from Monday to Friday and strive to ship them within 24 hours. Shipments within Dubai typically arrive within 1-2 business days, while deliveries to other Emirates generally take 2-3 days. Deliveries to Middle Eastern countries usually take 4 to 5 working days and other international destination take 5 to 8 days, excluding customs clearance. Please be aware that delays or variations in delivery times may occur due to shipping courier delays, unforeseeable events, or extreme weather conditions. Read More.
Returns and Refunds
Returns and Refunds
We have a 14-day return policy, which means you have 14 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. Reed More


OCEAN REEF GSM CUBE3 R2 – Triple-Mode Underwater Communication System
(Dispatches in Approx. 10-14 Days)
The GSM CUBE3 R2 is OCEAN REEF’s most advanced and versatile underwater communication unit, engineered for professional divers, instructors, and commercial operations. Designed for maximum flexibility, it combines three communication modes in one compact device—delivering clear, reliable voice transmission in any diving environment.
Whether you're conducting training, managing surface-to-diver communication, or coordinating team dives, the GSM CUBE3 R2 ensures seamless connectivity, safety, and control underwater.
Key Features
3-in-1 Communication System
-
Wireless Ultrasonic Communication
Always-on receive on Channel 1 with push-to-talk (PTT) transmission—ideal for diver-to-diver communication. -
Hardwired Full-Duplex Mode
Connect to the ALPHA PRO X DIVERS surface unit for real-time, hands-free communication (talk & listen simultaneously). -
VHF Surface Interface Ready
Compatible with dedicated VHF radios using an optional interface kit and waterproof housing.
Advanced Performance & Design
- Permanent Wireless Receive – Always listening on Channel 1 for instant communication
- 6-Pin Waterproof Connector – Plug-and-play cable connection, even underwater
- D-Mic Dynamic Microphone – Hydrophobic membrane reduces bubble noise and ensures crystal-clear voice
- PTT Control Button – Easy, reliable transmission activation
- Durable Construction – Engineered to withstand demanding underwater conditions
Comfort & Mounting
-
NACS™ Adjustable Mount System
Secure and ergonomic fit on OCEAN REEF Integrated Diving Masks (IDMs), especially Space & Neptune models.
Power & Maintenance
- Powered by replaceable 9V alkaline battery
- O-ring sealed battery compartment for water protection
- Built-in polarity protection
- Easy servicing and maintenance
What’s Included
- GSM CUBE3 R2 Communication Unit
- D-Mic Dynamic Microphone (hydrophobic membrane)
- NACS Mounting Components (for OCEAN REEF IDMs)
- 6-Pin Protective Plug
- Battery Compartment Cap with O-ring
- Owner’s Manual
Technical Specifications
- Wireless Frequency: Ultrasonic Channel 1 – 31.768 kHz
- Transmission: Push-to-Talk (PTT)
- Reception: Always-on listening mode
-
Connectivity:
- 6-pin waterproof connector (hardwire to ALPHA PRO X DIVERS)
- VHF interface compatible (via optional kit)
- Microphone: D-Mic with hydrophobic membrane (noise reduction)
- Power Supply: 9V alkaline battery (user replaceable)
- Mounting: Compatible with all OCEAN REEF IDMs via NACS
Compatibility
The GSM CUBE3 R2 is designed for maximum versatility and can be used with:
- All OCEAN REEF Integrated Diving Masks (IDMs)
- OCEAN REEF masks with Extender Frame
- Full face masks from OTS, Interspiro AGA, and Kirby Morgan M-48 MOD-1 (with proper adapters)
- Other underwater communication systems operating on the same channel
Why Choose GSM CUBE3 R2?
- Industry-leading multi-mode communication flexibility
- Reliable surface-to-diver and diver-to-diver communication
- Professional-grade clarity, durability, and performance
- Ideal for commercial diving, training, rescue, and guided tours

-
COMMUNICATION TYPE
-
CHANNEL SYSTEM
-
AUDIO OUTPUT
-
ACTIVATION-
-
BATTERY
-
CONTROL
-
OPERATING TIME-
-
CHARGING TIME-
-
COMPATIBILITY
-
OPERATING RANGE-
-
SCREEN SIZE-
-
CAMERA-
-
CABLE
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.


