iStone CP1 Portable Wireless Bluetooth Speaker, Bicycle Speaker with LED Flashlight, NFC Tech, Hands-free Call, Loud Sound and 10-hour Play Time - Bright Yellow &#9836;5-In-1 Multi-Function:Bluetooth bycicle speaker + LED torch light (100 lumen)+ 4400mAh Portable power bank + Handsfree Call + IPX5 Water-Resistant. &#9836;Simple, stable pairing all your digital media from any Bluetooth device or NFC and control iStone CP1 from across the room. If you do not want to connect a Bluetooth or NFC, iStone CP1 also has a 3.5mm stereo AUX input port, and SD card input port. &#9836;With its compact size ( Only 1 lb, Just 7.2 inches long) , iStone CP1 is the perfect companion for any mobile device. Can be quickly installed in the car's sun visor or bicycle handlebars,providing convenient phone conversation during driving & Enjoy the music while you are driving cycling,And with Hook can hang it on your backpack or belt etc anywhere. &#9836;Implemented with 4W total acoustic drivers and ultra-small size produce a wide audio spectrum. The newly designed passive radiator could provide strong bass without distortion even at highest volume. Turn it on and immerse yourself in 3D sound. &#9836;With a built-in rechargeable battery that last up to 20 hours, you can party all day or nightanywhere. Owning iStone CP1, holding a relaxed and happy mood.