The Samsung SEW 3035 Premium baby monitor ensures optimum reassurance. The parent unit features a 3.5" colour LCD screen that delivers high resolution images that can be viewed via Skype, MSN or Yahoo Video chat PC connection required, alternatively images can be viewed on your television. Video can also be stored through the SD micro slot that can be shared with friends and family later via email or social networking sites. Parents can have comfort knowing their images are secure as, although the digital signal has a range of 100m, this is secure and interference free. The unit is expandable, up for four cameras, so is ideal for multi room viewing. The two way talk back feature allows parents to speak and settle baby. The temperature feature provides an alert if the room gets too hot or too cold. Other features include 2x digital zoom, remote activated night light and night vision that allows you to see your baby without having to switch on lights. The parent unit comes with a rechargeable built in battery and sleep mode to conserve battery energy. The camera uses either mains power or 4xAA batteries