Sony Corporation of America. Sony SLP-340 Betamax Portable Videocassette Recorder. Cover: photograph and description of benefits. Inside, Features include Three-way power operation, Color/ monochrome record and playback, audio dubbing, and others, a section on Connections, a diagram of the AC-340 AC Power Adaptor, and a diagram for Location of parts and controls. Inside cover: The Betamax 300 Series described as a whole. Back cover: Specifications, such as Video Signal, Power Requirement, Dimensions, Horizontal Resolution, etc.