Bluetooth Speaker- Monster S320 Bluetooth speaker is designed and engineered by Noel Lee and the Monster Design Team in the USA. From 40 years of sound engineering fine-tuned to deliver the most impactful music experience possible, with 40W audio performance, 360° stereo sound effect, truly enjoy the surround sound of the cinema, a truly unparalleled listening experience. True Wireless Speaker-True Wireless Stereo Dual Pairing Wireless Speaker Bluetooth 5.0, Easily pair two portable speakers, Upgrade 80W stereo surround sound immediately. realizing 360-degree true dual enhanced stereo sound, unlock the high-quality music texture and make the spirit of your spark burst, meeting the requirements of your friends for partying. IPX7 Waterproof Speaker - Monster Portable Bluetooth Speakers is an excellent speaker. completely water-proof, shockproof and splash-proof rain, snow, dust, even completely immersed in water for, mud and sand, which is perfect for participating in most outdoor activities, like swimming, boating, skiing, mountain climbing, hiking and rock climbing. This waterproof speakers can also be used as shower speakers in the bathroom if you like. True 360°Stereo - Amazing Bass Sound, Stereo sound with full bassthe speaker delivers immersive sound with rich bass, mids and highs, and dynamic sound.in the same way as the live concert performance. You will like this Stereo Sound speakers. 32-Hour Playing Time- Fully charged and medium volume can be played 32 hours, hours of continuous music playtime or make calls time(built in Microphone) Enjoy music day to night never stop. Let your work and study no longer be boring. makes your purchase absolutely risk-free. Any questions please feel free to contact us, we will provide a premium service within 24 hours.