Sony RDP-CA1 This RDP-CA1 portable speaker is the perfect partner for your compatible Handycam projector camcorder. Enhance your camcorder's existing audio with powerful, 360 surround sound when you attach this speaker to the camcorder's Active Interface Shoe. The camcorder powers the speaker directlyno additional batteries or power supply is neededmaking this a truly mobile solution. Everyone in the room will hear the audio loud and clear as they enjoy your videos virtually anywhere. A/V connection cable included.