"Rugged, waterproof and portable only quite sums up the Jacket H20 4! Take your music wherever you go, be it land or water! Connect two Jacket H20 4's together wirelessly via True Wireless Pairing for the ultimate in sound. With 10 hours battery life, 100ft wireless range and """"Just Ask"""" allowing you to access your Siri and Google voice assistant via Bluetooth through your smartphone, get answers, ask questions and never worry about being disconnected! With the IP67 Everything-Proof rating and durable carabineer strap, strap to your clothes or backpack and take on any adventure without sweating the elements!"