[Professional Stereo]The stereo surround sound effect is more than that of one pro. Two pro are networked and used. The left and right sound channels the ears at the same time. You can feel 360 stereo surround without dead corners [ Performance]The double-layer biological diaphragm produces sound with sound quality, and the sound cavity is designed with top lossless sound quality. It can effectively reduce low-frequency distortion and clearly analyze the musical details of the instrument [ Battery]Built in super battery, lasting life, built-in 2000mAh lithium battery, lasting life for 8 hours [Cool atmosphere lamp]The breathtaking breath lamp makes music more than hearing. The colorful atmosphere lamp turns on and changes, the shape in the glass cover gives you a experience as if you are in the ocean world,giving you a sense of experience in the aquarium [HD Quality]Wireless Bluetooth 5.0, high-definition remote connection, built-in customized chip, stable and fast transmission, connection distance of about 10 meters, the music pleasure brought by wireless Charging interface: Type-c Power: 10w Charging duration: 2-3 hours Light mode: seven Built in battery: 2000mAh Input: DC5V/1A Motor type: reduction motor Image duration: 3-8 hours Frequency response range: 100HZ-20KHZ Extended storage: 32GB Speaker adjustment mode: key Interface type: USB Colour:B: black Material:plastic+metal Size:11 x 24cm Package Contents: 1 x Bluetooth Speaker 1 x usb cable 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.