FUGOO Tough - Portable, Waterproof, Rugged Bluetooth Wireless Go Anywhere Speaker World's most rugged bluetooth speaker. 100% waterproof, mud-proof, snow-proof and shockproof. 40 hours battery life Built-in microphone for full-duplex speakerphone, Siri, and Google Now capability Six drivers on four sides for a 360-degree sweet spot and incredible 95dB SPL-A volume