What In The Box: (2) RockNRide Powered Bluetooth Motorcycle Handlebar Speakers. (2) Handlebar Mounting Sets with Bracket and Screws. (1) Wired Remote. (1) Wire Harness. Owner's Manual. Warranty Card. Features: Pair Rockville RockNRide 3" Metal Powered Bluetooth Motorcycle Handlebar Speakers. Peak Power Handling: 300 Watts. RMS Power Handling: 150 Watts. Completely Waterproof with IPX67 Rating. Inputs: USB, FM Radio, 3.5mm Aux, RCA | Top quality metal speaker enclosures are waterproof and un-breakable. Built in high powered amplifier for easy installation with no exposed wire terminals. Extremely powerful to be heard over the engine noise of a motorcycle even while wearing a helmet. 360-Degree Free Rotation Bracket Adjustable to Fit 0.75 - 1.25 Handle Bars. Working Voltage: 10V-24V DC. MOSFET Power Supply. Impedance: 4 Ohms | Built-in Bluetooth Audio Streaming: 33 Foot Range Automatically remembers and syncs with previously synced devices Compatible with any Bluetooth devices such as Smartphone, tablets, etc. 33 Foot Range. Automatically remembers and syncs with previously synced devices. Compatible with any Bluetooth devices such as Smartphone, tablets, etc. Frequency Response 20Hz to 20KHz. S/N (Signal-to-Noise) Ratio: >50dB. THD (Total Harmonic Distortion): < 0.1%. FM Radio Frequency: 87.5Hz - 108.0Hz | Auto-Scan Available for FM Radio Stations (No Manual Tuning). RCA input allows you to listen to any audio device through these speakers. 3.5mm Female Jack for Wired Remote Control. 3.5mm AUX Input Allows You to Connect Any Audio Device. Built in USB 2.0 input with waterproof cover allows you to listen to a thumb drive with music on it (max 32gb). Wired Remote Included. Universal for Motorcycle, ATV, Motorbike, Snowmobile, Scooter, etc. Thermal, Overload, Circuit Protection | Easy to Install: Just connect the included power and ground wires, and mount the speakers and the wired remote to your handlebar with the included mounts. Built-in Bluetooth Audio Streaming: 33 Foot Range. Automatically remembers and syncs with previously synced devices. Compatible with any Bluetooth devices such as Smartphone, tablets, etc