The Koolatron Traveller 3 Thermoelectric cooler is ideally suited to the individual traveller and can be used as a cooler or warmer. This cooler is the Perfect solution for transporting heat sensitivemedicines, prescriptions or photographic materials. It can also be used with an optional adapter for use at 110V. The Traveller 3 Cools up to 22 °C below the ambient temperature and heats up to 57°C. The cooler comes with an extra wide anti slip shoulder strap and can be carried comfortably.