OTS RX-100-D2-B Receive ONLY Buddy Phone with Squelch

The RX-100 Buddy Phone® Receive Only unit is designed as an acoustic underwater listening device to be used with all Buddy Phone® or Aquacom® transceivers within range and on the same frequency. The diver simply attaches the RX-100 to his own face mask and is ready to go. When the diver enters the water, the RX-100 powers up and cycles to the receive mode—ready to receive a message.The RX-100 is the most powerful tool an Instructor or Tour Guide can use. It allows verbal communications helping the new diver feel more secure.The RX-100 is compatible with all OTS through water communications systems (surface and diver) and receives on Channel 1. Features Channel B = 31.25K Lower Nominal Range: 50 to 500 meters depending on sea conditions and noise levels. Refer. Frequency: 32.768 kHz upper single sideband Audio Bandwidth: 300 Hz to 3,000 Hz Auto. Gain Control: Greater than 80 dB Earphone: Ceramic with dynamic depth compensation Microphone: n/a Transducer: Ceramic cylinder Acoustic Power: 0.5W Battery Type: Alkaline 9V "transistor" type Operating Depth: 130 fsw Weight in Air: 8.1 oz. (229.64 grams)