[360 stereo surround sound]: Bluetooth speakers deliver powerful sound and deep, precise bass. Magnesium alloy dual diaphragm provides stereo surround audio experience. Comes with straps for easy transport. Great for indoors and outdoors: family, yoga, party, car, hiking, camping, biking. [Up to 12 hours of playback]: Up to 12 hours of playback on battery power, built-in microphone for hands-free calling on smartphones and iPhones, supports micro USB charging and multi-mode options including Bluetooth , SD card, AUX- in, flash memory driver. [Bluetooth 5.0 Quick Connect]: Bluetooth 5.0 is compatible with Echo Dot, Android, iOS and Windows systems, and fully supports your mobile phones, laptops, tablets, computers and any other available Bluetooth device. [Waterproof Portable Bluetooth Speaker]: Enjoy music as you like, without worrying about moisture and splashing water that may damage your device. The connector is hidden under the rubber cover. Its compact design makes it portable, ultra-light and easy to put in your wallet or backpack.