Crack, texture appearance unique. Dazzle color light, turn on the light can shine dazzle color breathing light. Compact and portable in size, it can easily fit into a pocket or backpack. Bluetooth V4. 0, enjoy wireless, 10 meters effective transmission distance. Playing time is two to three hours, charging time is two hours, and the battery capacity is 300mAh. Low frequency enhancement system with high and low frequency diaphragm 360 surround.