Speaker is equipped with bluetooth 4.2 technology, whose working range in open space is up to 10 meters With 96 LED lights, after you press the light button on the speaker, it will create a flame atmosphere for you. with warm LED flame light, it will give you eye-protection soft light, and then you can read books while listening to soft music, enjoy the slow time Speaker supports tws connection, which means that if you buy two of the speaker, you can connect them simultaneously and they will play music for you at the same time, so you can enjoy stereo surround sound easily