Function: card, radio, voice prompt, call function, insert U disk, audio line input Output power: 5W*2 Size: 74mm*74mm*204mm 1. Refreshing music: The speakers ensure an authentic party atmosphere with top-notch sound and lighting - a high-resolution 360-degree LED light show fills the room to match the beat. 2. Built-in battery Thanks to the powerful battery, you can dance until the wee hours - 12 hours of playback on a single charge, no challenge for a jukebox. 3. Waterproof According to the protection class IPX7, it is guaranteed that no more parties will fall into the water - whether during a sudden rainstorm or a pool party of the year - can be celebrated in water depths of up to 1 meter. 4. Compatible With this feature, you can connect multiple compatible speakers together - for the best stereo/360-degree signature sound in every corner of the room