Pure Monster Sound - The Monster Round One Bluetooth speaker is designed and engineered by Noel Lee and the Monster Team in the USA. From 40 years of sound engineering fine-tuned to deliver the most impactful music experience possible. Dynamics with substantial deep bass punch, clarity and details revealed, and no distortion at any level, a truly unparalleled listening experience. IPX8 Waterproof Shower Speaker - Portable travel speaker for completely waterproof design, can be fully immersed up to 1 meter for about 30 minutes underwater perfect for various water activities like swimming, kayaking, or enjoying your music at the beach. No worries about weather and outdoor condition, applicable to any weather. Advanced Bluetooth 5.4 Technology - Enjoy seamless wireless connectivity with the latest Bluetooth 5.4, ensuring faster pairing, easily connect to any Bluetooth device, stable connections, and superior audio quality up to a long range. It is a portable wireless bluetooth speaker that is very suitable for outdoor sports and cycling sports. Portable Bluetooth Speaker- The compact Monster Round One Bluetooth Wireless Speaker is easy to carry around, Built-in microphone for a clear hands-free call, convenience up! Includes the lanyard, a detachable suction cup, and easy to attach shower speaker to bathroom tiles and mirrors.built-in hook with a carabiner so you can hang the portable speaker on backpack, bicycles, carts and anywhere you like, very suitable for indoor and outdoor. Speaker: Long battery life - With the top-of-the-line rechargeable li-ion battery, listen to up 24 hours of continuous music playback at the appropriate volume, so that music can be played non-stop from day to night.12 months worry-free service, if you have any questions, please feel free to contact us.