The Bluetooth 5.3 is as smooth as flowing water: improve the stability of wireless connection, enjoy smooth and good sound with lower power consumption, more stable transmission, and strong anti-interference Free your hands for high-definition calls: built-in noise reduction microphone, strong reception capability, clear hands-free calls without lag, no need to face the phone, the phone voice is more than enough music formation: use Bluetooth connection to connect speakers in series to make the music performance more three-dimensional Long-lasting battery life: outdoor travel, with 1000mAh battery capacity, music accompany you all the way wired bats: Bluetooth 5.3 technology, built-in voice microphone transmission fast and stable straight-line connection distance can reach more than 10 meters, making listening more free Color:Black Material:ABS Package Contents: 1 x Bluetooth speaker Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.