not bad but overpriced and small and not slip

The idea is quite funny, but for the price you can find by Mobicool (same manufacturer again) far better equipment in similar style. The giant Coke can is not slipping. Man needs but little harder back pressures so that the door opens and so you push it in front of him. It is a bit noisy (the other models from the same manufacturer are not) and really puny in content (the other Mod .... not). So buy Waeco Mobicool F15, is also suitable for motor vehicles, has two levels and is better thought out (Consumes 15W in sleep mode and require for a drink in the summer).