1. It can be used in multiple scenarios, which can the neck, waist, and put on the desktop;2. -capacity battery, up to 10 hours of battery life;3. High-quality silent brushless motor;4, 3 gears can adjust the volume;5. Wide-angle outlet, ; Simple appearance, color matching;Rated input: DC50V/10AWorking current: 03-12ARated : 12-5WBattery capacity: 2000 mAhBattery usage time: 1st volume is about 10 hours, 2nd volume is about 45 hours, 3rd fan is about 25 hoursCharging time: about 2 hourssize: 83cmx123cmx43cmMaterial:ABS+electronic componentscolour:GreenPackage Contents:1 x fan host1 x charging cable1 x lanyardOnly the above package content, other products are not included.Note: Light 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.