JVC KDR840BT AM/FM/CD/MP3/Bluetooth(R) Wireless Technology Dual USB/CD Receiver with AUX and 5-Zone Variable Color TechnologyBluetooth Receiver SIRIUS or XM Satellite Radio Ready MOS-FET 50W x 4 (20W RMS x 4) 24-Bit DAC Bluetooth Wireless Technology-1 (Built-in) 2 Phones Full-Time Connection