Hi, I don't think it has that much power, but it's enough to listen to normal music loudly, as soon as it goes into the bass range, it scratches very quickly. This should be due to the small speaker. In terms of sound, it also depends on where the speaker is placed. The pressure is greater in the corner than in the middle of the room. The battery lasts for 20 hours at normal volume with Bluetooth. Hope I could help, I don't know the exact figures, hence my impression. Definitely recommendable