High-quality plastic makes it stable and will not produce vibration sound. Black and bright colors and led colored oval lights make the speakers show the beauty of science fiction^ High quality cable and independent drive-by-wire design, stable sound transmission and convenient control. ^ 3.5mm audio interface, suitable for most music players, iPhone, iPad, Samsung phone or tablet, MP3 player or other device, just plug into your device to listen to your music at full volume. ^ USB power supply, can be directly plugged into the computer USB port to take power, can also connect most of the 5V charger power supply.^ Outstanding bass quality, compared to other small speakers. Built-in bass diaphragm, closed Cavity and Low Frequency Aid Design to provide strong bass performance.