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Underwater Communication

Underwater communication devices and slate systems for dive guides, scientific divers and anyone who needs to exchange more than hand signals. Includes acoustic communication units, electronic slates and advanced signalling equipment for professional dive operations.

Ocean Reef Headset and Mic for Alpha PRO
Ocean Reef Extension For Videocamera Gamma 105 - 50metres/165Ft
Ocean Reef GSM Connector for AGA Interspiro Mask

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Ocean Reef Gamma 105 Audio Video U/w Com System - NTSC - 110v
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Underwater Communication

Ocean Reef Gamma 105 Audio Video U/w Com System – NTSC – 110v

RM19,950.00
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Ocean Reef MHA-2 support for EXTENDER FRAME (w/out Headset)
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Underwater Communication

Ocean Reef MHA-2 support for EXTENDER FRAME (w/out Headset)

RM170.00
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Ocean Reef Din Connector To Surface Unit - Alpha Pro X-divers
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Underwater Communication

Ocean Reef Din Connector To Surface Unit – Alpha Pro X-divers

RM110.00
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Ocean Reef Gamma Alpha - PAL
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Underwater Communication

Ocean Reef Gamma Alpha – PAL

RM19,950.00
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Ocean Reef M-105 Digital Tranceiver Surface Unit - 110/220v W/battery Tester
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Underwater Communication

Ocean Reef M-105 Digital Tranceiver Surface Unit – 110/220v W/battery Tester

RM6,890.00
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Ocean Reef M-105/alpha Pro X-divers Audio Output Cable (2metres - Rca Connect)
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Underwater Communication

Ocean Reef M-105/alpha Pro X-divers Audio Output Cable (2metres – Rca Connect)

RM200.00
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Ocean Reef Gamma Alpha - NTSC
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Underwater Communication

Ocean Reef Gamma Alpha – NTSC

RM19,950.00
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Ocean Reef GSM Cube3
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Underwater Communication

Ocean Reef GSM Cube3

RM3,920.00
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Ocean Reef Extension For Videocamera Gamma 105 - 50metres/165Ft
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Underwater Communication

Ocean Reef Extension For Videocamera Gamma 105 – 50metres/165Ft

RM2,750.00
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Ocean Reef Video Cable for surface/diver for Gamma Alpha & Gamma 105
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Underwater Communication

Ocean Reef Video Cable for surface/diver for Gamma Alpha & Gamma 105

RM2,750.00
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Ocean Reef Alpha Pro X-divers - 110/220v
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Underwater Communication

Ocean Reef Alpha Pro X-divers – 110/220v

RM8,840.00
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Ocean Reef GSM Connector for AGA Interspiro Mask
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Underwater Communication

Ocean Reef GSM Connector for AGA Interspiro Mask

RM470.00
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Ocean Reef CCD Micro Camera w/housing - PAL
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Underwater Communication

Ocean Reef CCD Micro Camera w/housing – PAL

RM4,140.00
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Ocean Reef Alpha Pro X-divers - 110/220v - Surface Unit Only
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Underwater Communication

Ocean Reef Alpha Pro X-divers – 110/220v – Surface Unit Only

RM4,290.00
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Ocean Reef Portable 9v battery tester (GSM)
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Underwater Communication

Ocean Reef Portable 9v battery tester (GSM)

RM330.00
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Sherwood diving accessory and equipment
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Diving Equipment

Sherwood Emergency Oxygen Kit (Jumbo) Sherwood Emergency Oxygen Kit (Jumbo)

RM986.36
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Poseidon Trident Fins
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Underwater Communication

Ocean Reef CCD Micro Camera w/housing – NTSC

RM3,680.00
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Ocean Reef Professional Cable W/rope - Yellow - Per Meter
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Underwater Communication

Ocean Reef Professional Cable W/rope – Yellow – Per Meter

RM80.00
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Ocean Reef Portable 6v battery tester
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Underwater Communication

Ocean Reef Portable 6v battery tester

RM380.00
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Sherwood diving accessory and equipment
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Diving Equipment

Sherwood Emergency Oxygen Kit (Standard) Sherwood Emergency Oxygen Kit (Standard)

RM886.36
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Expert Advice

Talk to Your Buddy Without Surfacing

Wireless diver communication systems allow real-time voice communication between buddy pairs and dive guides during the dive — transforming guided tours, research dives, and dive instruction across Malaysian dive sites.

Ask About Underwater Comms

Technology

How Wireless Underwater Communication Systems Work

Underwater communication systems use acoustic transducers to transmit audio through water. Sound travels 4x faster in water than air — but refraction, distance, and ambient noise affect clarity. Range drops significantly near coral and rocky surfaces.

Applications

Professional Applications for Underwater Diver Communication

Dive guides use underwater communication to point out species without hand signals, instructors correct student skills in real time, and research divers coordinate survey data. Commercial dive operations use it for surface supervision of working divers.

Full Face

Full Face Mask Integration for Underwater Communication Systems

The microphone and speaker integrated into a full face mask enable natural speech — no hand signals, no interrupting the dive. The system suits dive instructors running skills at depth and guided photography dives.

Malaysia

Underwater Communication in Malaysian Resort Dive Operations

Malaysian dive resorts at Mabul and Sipadan use diver communication systems for guided turtle and hammerhead encounters where directing divers silently and precisely improves the experience without disrupting marine behaviour.

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FAQ

Frequently Asked Questions

Everything you need to know before making a purchase

What is the difference between full-duplex and half-duplex underwater communication systems?
Full-duplex systems allow both divers to speak and hear simultaneously u2014 similar to a phone call. Half-duplex requires one person to stop transmitting before the other can speak u2014 similar to a walkie-talkie. Full-duplex systems (like the Ocean Reef ARIA) offer more natural conversation but are significantly more expensive. Half-duplex units are more affordable and practical for most recreational dive buddy communication needs.
Can underwater communication devices be used at dive sites in Malaysia such as Sipadan?
There are no site-specific restrictions on underwater communication devices at Malaysian dive sites including Sipadan. Operators do not prohibit their use. They are most common among underwater videographers coordinating shots
How far can underwater communication devices transmit in tropical Malaysian waters?
Effective range depends on the technology u2014 acoustic communication devices typically reach 100u2013200 metres in ideal conditions, but thermoclines and haloclines common in Malaysian waters around Sipadan and the Coral Triangle can scatter signals and reduce effective range. Visibility and water clarity do not directly affect acoustic transmission range, but dissolved marine particles in runoff near island resorts can cause minor interference in some systems.
Are underwater communication systems compatible with standard or full-face masks?
Full-duplex systems like the Ocean Reef ARIA and DiverLink are designed for use with full-face masks that include integrated speaker/microphone systems. Standard half-face masks require a separate bone conduction transducer that transmits voice via jaw vibration, which has lower voice quality but works without mask modification. Divers in Malaysia using Ocean Reef FFMs at marine research stations and on certain TARP (Tun Abdul Razak Park) guided dives do use integrated communication.
What is the battery life of typical underwater communication systems on a dive day?
Most consumer-grade systems offer 4u20138 hours of standby and 2u20134 hours of continuous transmission. On a typical Malaysian two-tank morning dive schedule (roughly 3 hours on the water), a fully charged unit covers the session comfortably. Carry the charging cable and a power bank for multi-day liveaboard use u2014 proprietary charging connectors are common and not always available in remote Sabah or Pahang dive resorts.
Do underwater communication devices require a licence to operate in Malaysia?
In Malaysia, communications devices operate under MCMC (Malaysian Communications and Multimedia Commission) regulations. Acoustic underwater communication devices that do not transmit through the air and do not use licensed radio frequencies generally fall outside standard radio licensing requirements. However, if a system includes a surface radio component, that element may require registration. Check the MCMC guidelines or consult your equipment supplier before importing a commercial-grade communication system.