Kuryakyn Road Thunder Bluetooth Sound Bar Plus by MTX Durable IP66-rated housings are weather-resistant, while built-in heat sink and self-protection circuit combat excessive heat and over/under voltage regulation. An internal 3.0 Bluetooth receiver allows wireless connectivity to any Bluetooth-enabled smartphone or music device, and auxiliary input and output ports connect standard devices via 3.5 mm cable. Includes power, ground and ignition wire for easy disconnect. Features: Peak music power 300 Watts Two 2 x 3 full range speakers with dual voice coil Four 1 silk dome tweeters with N42 grade magnets for higher power handling Amplifier 4 x 19Wrms, Max 4 x 23W Integrated 3.0 Bluetooth receiver with automatic pairing via NFC Integrated water-resistant 1.0 Amp USB charging port in end cap Auxiliary 3.5mm input in end cap for connecting devices via cable Auxiliary 3.5mm output in end cap for connecting an external amp or additional sound bar Speaker Dimensions: 10.6 long x 2.9 diameter, Bracket measures 6 long x 3 in diameter Universal articulating mounting clamps fit virtually any bars between 7/8 and 1-1/4, brackets are patent pending Power, ground, ignition wire with connector for easy disconnect All weather construction for use on any vehicle - weather-resistant in accordance with Ip66 rating Built-in self-protection circuit and heat sink