①. Delivers stereo sound with clarity and no distortion from dual precision stereo drivers and patented bass radiator. 360° full sound effect delivers stereo sound. A single bass port enhances the bass frequency to make the beat stronger. ②. Advanced antenna design with Bluetooth 5.0 ensures fast connection and longer wireless range, clear sound quality. Connecting to devices in seconds, it can provide sound quality transmission in an obstacle-free environment, ensuring no delay in playback. ③. Recharges in 2 hours using the included cable. When the battery is fully charged, it will automatically stop charging. The built-in 300mAh lithium-ion battery can be used for 6-8 hours. Wireless portable Bluetooth speakers can be in your life. ④. Micro (TF) card playback, supports mp3, wav format, supports memory playback. ⑤. Mini music box, put music in your pocket, portable mini Bluetooth speaker only 120 * 60 * 30mm, enjoy music anytime, anywhere. CE marking is a declaration by the manufacturer of the product that the product meets the requirements of the European Commission directives applicable to it.