Bluetooth Water Resistant 5W Speaker. Loud Base and Crisp Clear Sound w less than 2% Distortion. Convenient Size and Suction Mount are Perfect on Stand Up Paddle Boards. Hands Free Calling PATENT PENDING SUP DESIGN: This advanced design was made for Stand Up Paddle Boards, but has a Free-Sanding Mount and a 1/4 20 Screw that pairs with COnnex SUP Mounts that screw diretly on the board or use the awesome locking lever that provides extra tension for a stronger mount on SUP's or other flat surfaces. Go ahead and sing in the shower FEATURES AND BENEFITS: 5 Buttons allowing Easy To Learn Controls for Volume, Fast Forward, Reverse / Repeat, Pause, Skip, and Hands Free Calling with a Built In Microphone. Also a great safety features for vehicles without Hands Free. Keep paddling while you talk or listen to music or mediatation sounds WATER RESISTANT: We have tested this for 1000's of hours listening in the rain, spalshing on paddle boards, and floating on water. SUPSmart Speakers are NOT intended to be submerged, but work great for all water activites. Use it at the Pool, Beach, River, Lake and perfect for Kayaks, Wake Boarding, Water Skiing, Boating, Fishing, or Sing in the Shower AWESOME BASE AND SOUND QUALITY: We challenge any competitor to match the loud Base in such a small speaker with 5 watts of power and less than 2% Distortion. We have to turn it down because it gets so loud that you will be amazed that something this small sounds this good. There is no speaker that compares to this one CONVENIENCE AND LONG LASTING CHARGE: The Speaker includes a Carabiner to hang on your Belt Loop, Back Packs, Bikes, and other objects. Also included is a USB Port to connect with your computer for easy chanrging or add an adapter. Charges in just a few hours and can last up to 8 hours at low volume or jam out from 3 - 6 hours at higher volumes.