• Waterproof & Dustproof: IP67 means going anyway with extra protection against water and dust. With a durable silicone case, buttons and port covers provides better internal protection, allowing you to enjoy music wherever you are.• Rugged & Durable: Small-in-size and heavy duty, your Growl speaker will keep up without skipping a beat. Powerful dual 52 mm drivers deliver all the lows, all the highs with a wide range, high fidelity, and enhanced bass to give you top-of-the-line sound.• Built-in Powerbank: Plug in any USB charging cord when your device needs a juice boost. Keep the music going the extra mile with extra charge to go along with your 12H worry-free battery life.• Linkable Tech: What’s better than one speaker? Two. Link two Growl speakers together for double the jamming power. Bluetooth 5.0 lets your tunes travel up to 32 feet (go long!)• Pure Wicked Sound: Huge audio power with the perfect balance of thunderous bass, rich mids and clear highs with fewer distortions. Enjoy incredibly loud sound anytime, anywhere.• Excellent Customer Service: Make your purchase absolutely risk-free with our friendly support team and a 12-month warranty.