True Wireless Stereo speaker, one phone can link two speakers together, Supper BASS, 550mah, suction cup and hook, IPX6 (RED). silicone cup and hook include. True Wireless Stereo speaker. One phone can pairs two speakers together by Bluetooth. Two speakers play is one that is left channel, and the other is the right channe. 3D Stereo sound,With a Subwoofer that make the sound have great bass.