Bluetooth speaker can be carried around and enjoy your listening anywhere, adding wonderful experience on your journey. The wear-resistant material and lanyard are strong and durable, which enables you to hang the speaker on a backpack or bicycle easily. Enjoy hiking, fishing, beach party, or a dance party with your friends in a whole new way. This speaker also supports inserting a Mrico SD card or USB flash disk to play music.The outdoor wireless speaker has high-performance drivers built in, which allows for unique enhanced bass. An advanced Digital Signal Processor ensures pounding bass and zero distortion at any volume. The most advanced audio technology provide an 360° stereophonic clear sound quality and loud volume. We’ve eliminated distortion at high volumes for your maximum listening satisfaction.