Power Handling: Peak: 45 watts x 4 channels RMS: 16 watts x 4 channels. MP3/WMA/AAC/MP4/WAV/MPEG1/MPEG2/JPEG/FLAC Playback via USB Compatible with Apple iPhone 6/6+ and iOS 8 software 13-band graphic equalizer, Rear USB Input. Bluetooth Version: 4.2 Built-in Bluetooth technology for hands-free talking and audio streaming. MP3 ID3 Tag Display (Title/Artist/Album) AM/FM tuner with 18FM/12AM presets Shallow Chassis