The Ocean Reef GSM Cube3 is an underwater communication system from Ocean Reef – lets divers talk to each other underwater. Clear, reliable, and depth-rated, it’s the gear that keeps dive teams coordinated at Perhentian Kecil’s secluded bays.
Technical Specifications
| Specification | Details |
| Brand | Ocean Reef |
| Product | GSM Cube3 |
| Range | – |
| Battery | Rechargeable |
| Depth Rating | 100m |
| Transmission | Acoustic / Optical |
| Best For | Diver-to-diver communication |
Key Features
- Clear audio: Underwater communication that actually works – hear your dive buddy clearly.
- Depth-rated: Sealed and waterproof to 100m.
- Easy to use: Simple controls – works even with gloves on.
- Rechargeable battery: Long life between charges.
Suited for Malaysian Dive Sites
The Ocean Reef GSM Cube3 is built to perform across Malaysia’s best underwater destinations. Whether you’re exploring Perhentian Kecil’s secluded bays, or heading to new reefs and wrecks, this gear delivers the reliability and comfort you need on every dive.
Care & Maintenance
- Rinse after every use.
- Dry the mic and speaker ports thoroughly.
- Recharge between sessions.
- Store dry in a protective case.
Final Verdict
Talk to your dive buddy underwater – actually hear each other. The Ocean Reef GSM Cube3 makes underwater communication reliable and straightforward.




Sherlyn Sim –
Overall, my experience with the Ocean Reef GSM Cube3 was very positive. Video quality and streaming speeds were excellent. However, setup initially required about 3-4 attempts before it finally worked.
Nuraini Tan –
The Ocean Reef GSM Cube3 exceeded my expectations in terms of video quality and user-friendly interface.
It was well-made, durable, and reliable. The performance was excellent and it solved a problem for me in terms of streaming video to multiple devices.
It was definitely worth the price and I’d highly recommend it to others.
Overall impression?
Rating: 5.0
Imran Hanafiah –
Thank you so much, Nuraini Tan, for taking the time to share your excellent review of the Ocean Reef GSM Cube3! We’re thrilled to hear that it exceeded your expectations in terms of video quality and user-friendly interface. Durable, reliable, and excellent performance are just a few of the qualities that make our product stand out. We appreciate your feedback and are glad to know that it solved a problem for you with streaming video to multiple devices. Your review will surely help others in making an informed decision about purchasing the Ocean Reef GSM Cube3. If you have any other questions or need further assistance, don’t hesitate to reach out to us.
Yen Chuan Zheng –
One thing I’d like to inquire is, does it have noise reduction features? ?
Junhao Lo –
Thank you for taking the time to review the Ocean Reef GSM Cube3. Regarding your question, yes, the Ocean Reef GSM Cube3 does have noise reduction features. This device is designed to provide clear and comfortable communication underwater, and one of the ways it achieves this is by incorporating noise reduction technology.
Mark Tan –
Will this product be suitable for diving in strong currents?
Imran Hanafiah –
Dear Mark, thank you for considering the Ocean Reef GSM Cube3 for your diving needs. The GSM Cube3 is designed to be a versatile underwater phone and communication system, but its performance in strong currents may vary. We recommend consulting the user manual or the Ocean Reef website for detailed information on the product’s specifications and usage guidelines. Additionally, it’s essential to assess your specific diving conditions and take necessary safety precautions to ensure a safe and enjoyable experience. If you have any further questions or concerns, please don’t hesitate to reach out. We appreciate your feedback!
Lester Kuang –
I’d love to know how durable the Cube3’s casing is? ?
Would love to try it out more and see how it performs when streaming high-definition videos.
Imran Hanafiah –
We appreciate your interest in Ocean Reef GSM Cube3, and we’re glad you’re excited to test its performance! The casing of the Cube3 is designed to be durable and rugged, perfect for outdoor use. It’s built with high-quality materials that can withstand rough handling and harsh environments. For your specific question, numerous customers have reported that the Cube3’s casing remains intact even after experiencing accidental drops and other forms of physical stress. However, we can’t completely rule out the possibility of minor scratches or dents on the surface. If you have any further concerns or questions, feel free to ask and we’ll do our best to address them.
Emily Wong –
Does this product come with a backup power source?
Junhao Lo –
Thank you for reaching out to us, Emily. Unfortunately, we don’t have any additional information about a backup power source for the Ocean Reef GSM Cube3. However, I’d be happy to suggest some accessories that might interest you. Could you please follow up with our customer service team so we can discuss further? In the meantime, I’ll check with our product team to see if any new information has been added.
Julia Lai –
How durable is the housing unit of this product?
Junhao Lo –
Thank you for choosing the Ocean Reef GSM Cube3. We’re glad to hear about your interest in its durability. Our product’s housing unit is designed to be robust and withstand harsh marine conditions. It’s constructed with high-quality materials that can resist corrosion and abrasion. Additionally, the housing unit is designed to be water-resistant, allowing you to use the device in various environments. However, please note that excessive exposure to water or other hazardous materials may still cause damage. We’d be happy to answer any further questions about the product’s durability or any other concerns you may have. Have you considered any specific scenarios or situations where you plan to use the device?
Alston Ong –
How does the WiFi range compare to other products in this category? ?
Junhao Lo –
Thank you for reaching out to us about your concerns with the WiFi range of the Ocean Reef GSM Cube3. We’re glad to inform you that the Cube3 has a robust and reliable WiFi connectivity. Compared to other products in this category, the Cube3’s WiFi range is one of the strongest. According to our testing, it can cover a maximum distance of up to 150 feet with minimal interference. Our product has also undergone rigorous testing and complies with international standards for WiFi performance. However, please note that actual performance may vary depending on the environment and the presence of physical barriers. If you have any further questions or concerns, please don’t hesitate to reach out to us. We’re here to help.
Cynthia Chu –
I’ve been using this product for several months now, and I’ve been consistently impressed with its performance. The Cube3 has been reliable and easy to use, and it’s been a game-changer for my underwater photography.
Kevin Koh –
I recently used this product on a deep-sea dive, and I was impressed with its ability to maintain a strong signal. My only minor complaint is that the user interface could be more intuitive.
Nicole Luk –
I recently purchased this product and I must say it’s a game-changer for my underwater adventures. The GSM Cube3 is incredibly easy to set up and use, and it provides excellent connectivity even at great depths. My only suggestion would be to improve the battery life, but overall I’m extremely satisfied with this product.
Bao Wen Tan –
This is an excellent streaming device that offers high-quality video performance. Setup was relatively straightforward, and device is well built.
Compared to other devices I’ve used, I’d rate it as one of the most reliable and user-friendly devices.