SUPER LOUD STEREO SOUND: This 40W portable Bluetooth speaker features 2 tweeters and 2 full-range drivers to stream up to 60W loud and clear sound to your home or outdoor parties. 2 additional passive radiators in the front and back help to improve bass performance. It can deliver crisp highs, clear midrange, and rich, punchy bass. For a truly wireless stereo sound experience, you can also add a second one to create a stereo pair and amp up the fun UP TO 32 HOURS PLAYBACK: The rechargeable Bluetooth speaker lets you enjoy up to 32 hours of crystal clear audio at medium volume. It can pump out crisp, clear vocals and deep, powerful bass at home, in the garage, or on the go. You can charge your cellphone or other USB devices via its built-in USB port. No need to carry an extra charger