Delivery took 9 days due to the holiday season. I ordered another one in a different color to wear on the front and back of the waist belt while exercising on the stairs. As shown in the photo, it supports a maximum charging power of 7.5W. On the other hand, it can also charge a mobile phone, although at a low speed. It usually lasts more than 3 hours at about 70% speed. Be prepared for some noise; it doesn't feel that loud outdoors.

I took a chance and bought it, but it's really good. I'll only use it in the summer.

I recommend the product, it's good but as soon as it arrives try it out. I ordered two of this product and one of them doesn't work, the other works perfectly.

Great product

It's exactly the same, I was surprised haha.