The Tommee Tippee DECT Sound Baby Monitor uses Digital Enhanced Cordless Technology to pick up baby’s slightest sound. The DECT Sound Monitor is super-simple to use and the clever talk back feature and night light enable you to soothe your baby from another room. The easy-to-read LCD display also displays the temperature in your baby’s room. Room temperature display. Long distance range of up to 300m. Out-of-range indicator. Two-way talk back. Baby night light controllable from parent unit.