Audio Components Bluetooth 5.0 : Enjoy seamless connectivity with the latest Bluetooth 5.0 technology, ensuring stable and fast transmission of signals. Design : Take your music anywhere with this compact and lightweight speaker, perfect for outdoor activities or on-the-go use. USB Power Source : Charge your speaker easily with a USB cable, eliminating the need for batteries or power outlets. Full-Range Crossover : Experience high-quality sound with full-range crossover, delivering clear and balanced across all frequencies. Specification Power Rating3W Frequency Response20HZ-20KHZ H2O:<1% S/n: 80db Speaker Battery3.7V/ 300mAh Bluetooth version: Bluetooth v5.0 Product Size: f 50x33mmm Product Weight70g Features 36mm high and low diaphragm horn Eight channel frequency division, Dolby sound 10 meters wireless connection range, stable transmission fast Small and delicate, easy to carry Notice Do not place in direct sunlight, and do not place heavy objects on top of the Bluetooth speaker Wireless Bluetooth speaker do not put in dusty environment Wireless Bluetooth speakers should be used away from strong magnetic fields