The surface of the cooler is straight ice to the touch. Works only when connecting power, there is no battery. On the phone with a cover will not fit.

The product is very good, make the promises, cools and keeps the cell temperature stable, and the material is excellent (original) very good recommend

Original product, equal to description, light weight, cool very well, perfect fit and quiet. Seller recommended and arrived before the expected date.

The product is really the Q is described in AD, arrived well packed, seller posted the item within 24hs, arrived early, will test it now!

Not enough to make ice, but freezes the cel very well, tested playing PUBG new state in my Poco F3 and not heated very really help