The Miatone Outdoor Portable Bluetooth Speakers Are Waterproof And Come In A [Immersive Sound] Featuring MIATONE unique audio processing, the sound quality of BOOMBOX bluetooth speaker is significantly better across the entire frequency range from dual precision acoustic stereo drivers. It handles crisp treble and mid frequencies excellently without noticeable crackle at max volume. Using DSP technology, dual advanced subwoofers and aluminum passive radiators on each ends boost deep and accurate bass that's true to your music. No exaggeration and distortion. [TWS Function] You can pair 2 bluetooth speakers for a total of 32 Watts surround sound. The combined output generates full stereo, true-to-life sound. [Rugged Cylinder - Shaped Housing] Mesh fabric provides enough grip to run with this portable speaker in your hands without worry about losing a grip. Both ends have rubberized tips that will prevent slippage when stood up and absorb potential damage and softly cushion the speaker after big falls. So this speaker is perfect for outdoor sports, such as skiing, golfing, biking, hiking camping etc. [100 Feet Bluetooth Range] You can use this speaker with your phone to play Pandora and left the speaker outside and the phone inside within 100 feet. [Robotic Voice Reminder] There is a English accent robotic female voice reminder saying power on and off, Bluetooth paired and battery low.