Pioneer AVH-X490BS in-dash receiver Power output: peak: 50 watts x 4 channels/ RMS: 14 watts x 4 channels Mixtrax blends songs together dj-style Time alignment optimizes music for where you're sitting in the vehicle CD text information display: MP3 ID3 tag display (title/artist/album) Built-in Amplifier:50W x 4 ; Power output:14 watts x 4 channels