Enjoy peace-of-mind knowing you can hear your baby's every sound. This digital monitor uses DECT 6.0 Digital technology to ensure crystal-clear transmission without interference so the only sounds you hear are your baby's. In addition, DECT technology transmits a secure, encrypted signal so you can rest assured you're the only one who can hear your baby. With a range of up to 1,000 feet, the Safe&Sound Digital Audio Monitor lets you hear your little one from anywhere in the house—or even outside. The lightweight, battery-operated parent unit operates for up to 18 hours on a single charge and includes a built-in belt clip so you can move freely in and around your home. Its backlit display is easy to read, even in the dark. A set of five LED lights on the parent unit indicates the level of sound in your baby's room so you can visually monitor noise level with the receiver muted. In vibration mode, the parent unit alerts you with gentle vibrations when your baby is fussing. Sometimes all your baby needs to calm down is the soothing sound of your voice. The talk-back feature allows you to communicate with your little one from anywhere in your home through the parent unit. In addition, the loop on the baby unit lights up, acting as a calming night-light for your infant.