PIONEER, MVH-521 BT NEW IN BOX Pioneer MVH-215BT Digital Media Receiver The MVH-S215BT lets you enjoy hands-free calling and audio streaming in the car, courtesy of built-in Bluetooth with internal mic. Other entertainment options include a front USB input, Aux-In and AM/FM radio. Receive pristine sound from the MVH-S215BT’s built-in amplifiers with 4 x 50W of pure MOSFET power. For even more power, you can use the RCA pre-out to hook up an amplifier to provide additional power for speakers or subwoofers. Bluetooth Hands Free Calling and Music Streaming Stay safe and obey local hands-free laws with built-in Bluetooth (HFP) and internal mic. Easily pair a Bluetooth enabled phones without having to go through complicated settings. When a registered Bluetooth device is in close proximity to the receiver, the auto connection function automatically pairs the two units. Android Music Support Take advantage of a wired USB connection to the receiver. Sound stays clean and clear, and song, artist, time and album details are user-friendly. Audio Sepcifications Max Power Output: MOSFET 50W x 4 RCA Preouts: 1 Pair (2V) Built-in Amplifier: MOSFET 50W x 4 Loudness: Yes -3 Mode D/A Converter: 24-Bit USB: Single Front AUX Input: Front