Wireless communication devices for transmission of voice messages underwater, namely, a non-cellular transmitter and receiver set that operates underwater to facilitate communication between a person wearing the transmitter and a person wearing the receiver submerged in water
Wireless communication devices for transmission of voice messages underwater, namely, a non-cellular transmitter and receiver set that operates underwater to facilitate communication between a person wearing the transmitter and a person wearing the receiver submerged in water
Wireless communication devices for transmission of voice messages unde...