1. Important: Please charge the light before use it, it is low battery before packing. To get a better use experience, you need to charge them firstly. 2. RECHARGEABLE: This portable disco light ball includes built-in 250mAh rechargeable battery, works 2-3 Hours continuous, comes with USB lead cable. 3. Easy to install and play. Power supply with DC5V from a Power bank or computer or charger or any supply who can output 5V. LED light source is less consumption, stable performance. It is suitable for a teens birthday gift. It can be a Night Light after cover the cage. 4. Sound Activated: Sound or music in the vicinity can be identified by a powerful sound sensor. The color and the tempo of the color can be changed according to the beat of the music. (Red, blue and green, or all colors together) 5. It is Wildly Used for any parties ( Disco Party, birthday Party, Kids Party, home Party, Christmas Party, Dance Party, traveling Party Etc ), Holiday Decoration,Wedding Decoration, Show event, Christmas Decoration, Karaoke,DJ.also can use it outdoor, traveling, backyard, living room, Celebration Supplies, teens gifts, Birthday Present