Bluetooth speakers can be carried around and enjoy your listening anywhere, adding a 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, a beach party, or a dance party with your friends in a whole new way. This speaker also supports inserting a Micro 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 provides a 360° stereophonic clear sound quality and loud volume. We’ve eliminated distortion at high volumes for your maximum listening satisfaction.