The Pyle Pedal Sound 3-in-1 Waterproof Bluetooth Bicycle Speaker with Mic (Blue) comes with Bluetooth support in an all-in-one product. Listen to music, answer calls, use the super bright LED flashlight or charge your phone with the Power Bank function. The built in speaker clearly produces sound and is sure to surprise other riders with its powerful punch. With the speaker and built-in microphone, you can safely make phone calls while riding via the Bluetooth connection on your phone. The LED even has several modes that not only increase the ability to see what's in front of you, but also increase the visibility of yourself to others on the road. It even features a built-in rechargeable battery that can be charged via USB power.