... such as full channel TV sound, PC, game player, DVD Player, VCD Player, audio device, MP3 Player, and CD Player.Full-channel TV sound: What will ... out socket, such as TV set, audio device, DVD/VCD Player, multimedia, PC, MP3, Walkman, etc.Power supply: 2*AAA batteries or 4 ... , adjust the volume of the signal source (TV set, VCD Player, DVD Player, PC, MP3, Walkman ect) to a lower level, and reception ...