The Notabrick Ki Waterproof Bluetooth Wireless Speaker is a sleek and powerful portable audio solution. With a 15W RMS power output and USB-C input, this rectangular-shaped speaker offers a high-quality audio experience. It is lightweight at 0.8 lbs, making it easy to take on the go. The wireless connectivity via Bluetooth allows for seamless streaming of music, while the waterproof design ensures durability even in challenging environments. This black speaker from Notabrick is a versatile option for those looking for a reliable and convenient audio solution.