45 watts RMS x 4 at 4 or 2 ohms. 90 watts RMS x 2 bridged at 4 ohms. CEA-2006 compliant. Wireless Bluetooth connection via wired remote controller. Apt X technology improves Bluetooth sound quality. Supports AAC files for iPhone® users. USB port on remote for charging your portable device. Conformal-coated circuit board. MOSFET power supply and Class D amp technology. Preamp and speaker-level inputs/Outputs. Signal-sensing turn-on speaker-level inputs. Fuse rating: 15A x 1. Dimensions: 6-11/16W x 1-13/16H x 3-7/8D