4 Lighting Modes - Light up your mood with various colorful lighting modes, suitable for any party and public event. Wireless Stereo Pairing - Let you enjoy music better , we have equipped the speakers with the True Wireless Stereo function. You can connect two Bluetooth speakers (press both "pause" buttons simultaneously for five seconds) to enjoy powerful 3D surround sound. 12 hours of playback - Built-in 2600mAh lithium-ion battery can play up to 12 hours of music and can be charged from any USB power source; it can be fully charged in 3 hours (output power: 5V 2A). Multifunction - With the built-in microphone, you can make calls without using your hands; 3.5mm AUX input allows you to connect to devices that don't support Bluetooth，like a PC. Bluetooth 5.0 - Up to 10 meters Bluetooth wireless transmission that allows to easily connect to all smartphones, tablets and other Bluetooth devices, anytime and anywhere. Product size: 34*9.5*9cm. Shipping quantity: 1 piece.