OTS Buddy Phone Through-Water Transceivers (1/2 Watt Output Power)

Stay connected underwater with the OTS Buddy Phone Through-Water Transceivers, a compact and reliable communication system designed for recreational divers, instructors, safety teams, and professional dive operations. Operating at 1/2 watt output power, the Buddy Phone allows clear voice communication between divers and surface support, improving safety, coordination, and overall dive enjoyment.

Using proven through-water ultrasonic communication technology, the Buddy Phone transmits and receives voice messages without the need for cables or tethers. Its lightweight, diver-friendly design integrates easily with most full-face masks and communication setups, making it an ideal solution for training, underwater inspections, scientific diving, public safety operations, and recreational buddy teams.

Built to withstand demanding marine environments, the OTS Buddy Phone delivers dependable performance and intuitive operation, allowing divers to focus on the task at hand while maintaining constant communication.

Features

• 1/2 Watt ultrasonic through-water voice communication
• Diver-to-diver and diver-to-surface communication capability
• Compact, lightweight, and rugged design
• Simple push-to-talk operation
• Reliable performance in recreational and professional diving environments
• Compatible with various OTS communication systems and full-face masks
• Improves diver safety, coordination, and efficiency underwater
• Durable construction designed for harsh marine conditions

Benefits

Enhanced Underwater Safety

Maintain direct communication with dive buddies and surface support, allowing faster responses to changing conditions and emergencies.

Improved Team Coordination

Perfect for training, commercial diving, scientific research, search and recovery operations, and public safety diving where clear communication is critical.

Easy to Use

Simple controls and dependable operation make communication effortless, even in challenging underwater conditions.

Proven OTS Reliability

Manufactured by Ocean Technology Systems, a global leader in underwater communications trusted by military, commercial, scientific, and recreational divers worldwide.

Whether you’re conducting underwater inspections, managing dive training, or simply wanting greater confidence and safety underwater, the OTS Buddy Phone Through-Water Transceiver provides reliable voice communication when it matters most.

Specifications

Nominal Range	50 to 500 meters depending on sea conditions & noise levels.
Transmission Type	Ultrasound using upper single sideband (USB)
Transmit Output Power	0.5 watts PEP
Standard Frequency (PEP)	Recall & tone: Freq. A (Channel 1): 32.768 kHz USB Freq. B (Channel 4): 31.250 kHz
Audio Bandwidth	300 to 3,000 Hz
Automatic Gain Control	Greater than 80 dB
Earphone	Ceramic
Microphone	High Quality Microphone
Transducer	Ceramic cylinder
Battery Type:	Alkaline 9V. Batteries not included
Maximum Operating Depth	130 feet in sea water (fsw)
Weight in Air	8.1 oz