Unparalleled high-fidelity sound offers an amazing music experience Built in 2000mAh high-capacity polymer lithium battery supports charging of various smartphone models The Bluetooth speaker is also a digital alarm clock that supports three levels of brightness adjustment, which is thoughtful and energy-saving. In addition to listening to music, it also increases the pleasure of hearing. In your free time, listening to your favorite radio stations, current events, and funny jokes adds joy to your life. Easy to answer phone calls, built-in high-definition microphone, clear and bright call sound like music Intelligent noise reduction without delay. The battery life is about 6 hours (at medium volume).