Innovative multi-function, bluetooth speaker, time alarm all in one. Aesthetic design, interpreting classic phono elements with modern aesthetics. Excellent sound quality, professional acoustic modulation, loud and realistic sound. Exquisite and brilliant, the details are meticulously crafted and elegant. Power supply mode:built-in lithium battery Frequency response range:60Hz-15KHz Connection method:Bluetooth connection Bluetooth version:5.0 Playing time: 8 hours Effective distance: 10 meters Type:bluetooth speaker Color:Yellow/Green Material:plastic Package Contents: 1 * 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.