Speaker Pods - Black Road Thunder® Speaker Pods & Bluetooth® Audio Controller Kit allows for wireless connection to any Bluetooth®-enabled device Turn any smartphone or mp3 player with Bluetooth capabilities into the ultimate mobile sound system with the included Bluetooth Audio Controller, self-amplified 3" Road Thunder Speaker Pods, and 1" mounting clamps with a 7/8" adapter Bluetooth Controller Specs Compatible with most Bluetooth devices, including Android and iPhone Easy to install with hassle-free auto pairing and five front panel touch controls Durable, weather-proof design Includes two adjustable bar mount brackets to accommodate bar sizes 7/8" through 1" Includes power, ground, and output connections Weather-proof design tested in accordance with IP66 rating requirements 3" Speaker Pods Specs High- impact ABS enclosures Low current draw: 5 amps Includes 3.5 mm input and output connectors 100 W peak music power Weather-proof design tested in accordance with IP66 rating requirements PLEASE NOTE: Volume output for the MTX Road Thunder Speaker Pods is dependent on the quality of the input source, particularly when connecting via Bluetooth. Some input devices will benefit from the use of a volume booster. If you are experiencing volume output issues, please visit the Apple or Android app store and search for “volume boosters."