With the 3118 chip from GSR, TI Digital Amplifier, and 20 W output power, this speaker offers more than you might think. Equipped with TWS Bluetooth V5.0 technology, two Gravastar speakers can work together simultaneously with nearly perfect synchronization – providing true wireless surround sound without transmission delay. The triangular support structure and shock absorption ensure the speaker's stability with optimal sound reproduction. The highly sensitive touch volume control makes adjusting the volume easy. Green light effects synchronized to the rhythm of the music. The outer casing of the Gravastar is interchangeable, allowing for individual customization.