360° Surround Sound and Portable Design: This bluetooth speakers deliver excellent 3D HD stereo bass sound by 2 drivers and advanced DSP technology, It handles crisp treble and mid frequencies excellently. An advanced Digital Signal Processor ensures pounding bass and zero distortion at any volumeny volume. Portable bluetooth speaker with rugged rubber housing and a rubber hook that can be adsorbed on the wall, so it's perfect for travel, yoga, camping, and more outdoor/ indoors activities.