"The Turtlebox Audio Grande Waterproof Speaker serves up the largest, most powerful portable speaker in the Turtlebox lineup. Waterproof, buoyant, and crushproof, the Grande has adventure-grade rugged to handle anything the outdoors throws your way. The Grande delivers concert-level sound that commands crowds and fuels every pursuit. There's no need to cut holes in your boat when you can bring aboard the best speaker for the water, the dock, or anywhere you want audio that outperforms the setting. With Party Mode, you can sync unlimited Grandes for an unbeatable surround-sound experience. And with its impressive battery life, the Grande keeps the music going for days on end. Wherever the water calls, the Turtlebox Grande gives you massive sound with durability to keep up with any plans. Next time you're loading up the gear, don't forget to bring your trusty Turtlebox Grande. 14""H x 14""W x 8.4""D. Weight: 18.8 lbs. IP67 waterproof: submersible up to 3' for up to 30 minutes Fresh- and saltwater-grade ruggedness Drop-, crush-, and dust-proof Buoyant 40+ hours of premium, powerful sound on a single charge Party Mode surround-sound pairing with additional Turtlebox speakers (not included) True Wireless Stereo (TWS) for classic left, right stereo pairing 5.4 Bluetooth wireless connectivity Touch controls for Party Mode, TWS, Play/Pause, Next, and Volume Stainless steel tie-downs Rubber feet USB-C charging port Built-in microphone Up to 126db of sound 2 powerful, Class D digital amplifiers with enhanced DSP tuning for optimal audio performance 1.25"" titanium tweeter 10"" woofer 158Wh lithium-ion rechargeable battery"