Yamaha Natural Sound AV Amplifier DSP-AX757 Appearance-wise, there are no major scratches or stains, but there are minor scratches and stains from normal use. The main unit has been cleaned. Power-on and remote control operation have been confirmed, but sound output through speaker connection has not been confirmed as I do not possess speakers. Returns and repairs are not guaranteed. This listing includes the main unit and remote control. The box, instruction manual, and other accessories are missing. Please refer to the product website for specifications. Please understand that this item is sold as-is before purchasing.