Amplify your music, wherever with the JBL XTREME Portable Bluetooth Wireless Speaker in black.Xtra-powerfulUnleash 40 W of combined output power - two visible JBL Bass Radiators in the JBL XTREME Wireless Portable Speaker help produce a sound you can feel.Enjoy added crispness and definition courtesy of two tweeters and two midrange speakers.Outlast adventureRugged, splashproof casing means the JBL XTREME goes wherever you do, while a rechargeable Lithium-ion battery means your music plays for as long as you do. The portability of this speaker is enhanced by its crystal clear in-built microphone, allowing you to take echo-free calls at the touch of a button.This JBL XTREME Wireless Speaker also comes with a shoulder-carry strap so you can wear your speaker out, without taking a back.Create a musical eco-systemLink up multiple Connect-enabled speakers to take your listening experience to new heights. JBL's reliable Bluetooth technology allows you to stream high quality music wire-free from any compatible mobile, tablet or laptop.Sound certainly isn't compromised for portability with the JBL XTREME Portable Wireless Speaker.