The Turtlebox Audio Grande Gen 1 Portable Bluetooth Speaker is engineered to deliver massive sound output while withstanding the toughest outdoor environments. Built for extreme durability and unmatched volume, this ultra-rugged waterproof Bluetooth speaker is ideal for outdoor enthusiasts, hunters, boaters, job sites, and anyone who needs powerful sound in harsh conditions.Specifications and Features: Largest, loudest speaker IP-67 water-proof and floats Drop, crush, and dust-proof Party Mode(TM) and TWS Mode 40+ hours of battery life Ideal for 1-100 people Pro audio mount IP-67 waterproof (fresh & saltwater), buoyant, and submersible up to the 3 feet for 30 minutes 100% drop, crush & dust-proof 40+ hours of concert-level sound on a singular charge Party Mode allows for infinite pairing for an unbeatable surround sound experience True wireless stereo (TWS) allows for classic left, right stereo pairing 5.4 bluetooth connectivity Touch controls: Party Mode, TWS (stereo pairing mode), play/pause, next, and volume Stainless steel tie-downs & rubber feet USB-C for device charging Built-in microphone 126 decibels of sound