Usage Tips:Multifunctional and practical design, can be used as a speaker, digital alarm clock, FM radio, one machine with three functions, easy to use. Long standby time, built in 1000mHA high capacity lithium battery, durable, battery life can be up to about 40h. LED display screen, adjustable brightness, support clock display, FM frequency modulation, understanding of world information. The 360 degree subwoofer + dual rear speakers bring highquality sound effects and enjoy the auditory feast. Compatible with all bluetooth devices, supports memory cards and USB sound cards, and automatically unlocks common audio grids. (5883) Perfect after-sales service: If you have any quality issues or do not like it after receiving it, please contact us and we provide free return and exchange services Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.