Ivation Multi-Function Bicycle Speaker w/ External Audio Controls

This Speaker Has Exceptional Clarity of Sound and a Built-in Amplifier for a Surprisingly Loud VolumeConnect any MP3 player or phone VIA the 3.5mm AUX cableAlso has a built in USB reader that allows you to play / pause / forward / reverse audio from any USB deviceIncludes a 1000mAh Rechargeable Li-ion Battery for up to 15 hours of continues playSturdy case stores your Sunglasses, phone or MP3 Device and protects it from shock and weatherIt's a bike-mounted music player... You'll be surprised at this speaker's exceptional sound quality, as well as its size-to-volume ratio that's thanks to an onboard amplifier. It connects to any phone or Mp3 player with a standard 3.5mm jack. The speaker's external volume controls work in auxiliary mode, and a headphone jack offers private listening. While designed for bicycles, the speaker is a wonderful music companion that's perfect for travel, beach-going and jogging. 3 Velcro straps mount it to your bike handlebar, your belt, pocketbook or knapsa