Built-in a rechargeable 2000mAh lithium battery. The long lasting battery life of 8-10 hours ensures that the voice amplifier can keep up with your demands throughout the day, and it takes only 3 to 5 hours to fully charge.
Our loudspeakers provide 24 months of after-sales service, if you have any questions after receiving our microphone speakers, please feel free to contact us, we will solve all problems for you within 12 hours, we are always here, wish you a happy life.