Backed by our team, we bring forth an exclusive array of Square Speaker have promoted us to emerge as one of the prominent names of the field. Dual channel 3D audio technology, the rubber edge horn, bass enhancement technology, demonstrated extraordinary sound. Sound box uses the circular design ( special ) the diameter of 7CM, USB power supply, 3.5 standard audio input interface. Product description: Small volume, easy to carry. Soft mellow, lovely compact design, round round super attractive appearance fashion, unique personality charm out of the ordinary, aesthetic classic Super cute. MP3, MP4, notebook computer, desktop computer and other digital products the best friend! Own brand designed die packaging power amplifier, pure sound beautiful,a lot of praise.