Apparatus for transmission of communication; Transceivers; Walkie-talkies; Underwater transceivers; Underwater transceivers with integrated safety lights; Scuba diving masks; Scuba diving masks with integrated lights; Safety equipment, namely, flashing and steady safety lights, beacon lights; Loudspeakers; Underwater loudspeakers; Wireless transmitters and receivers; Underwater ultrasonic wireless transmitters and receivers; Underwater telephones

Apparatus for transmission of communication; Transceivers; Walkie-talkies; Underwater transceivers; Underwater transceivers with integrated safety lights; Scuba diving masks; Scuba diving masks with integrated lights; Safety equipment, namely, flashing and steady safety lights, beacon lights; Loudspeakers; Underwater loudspeakers; Wireless transmitters and receivers; Underwater ultrasonic wireless transmitters and receivers; Underwater telephones