Representing the newest generation in Audio Video monitors, Mobi's Secure Start provides the latest technologies at a tremendous value. Camera images are especially clear and sharp on the large 2" LCD display. The rubberized exterior on both the transmitter and the receiver add a non-slip feel, making them easy to hand-carry. The camera comes equipped with an adjustable pedestal for precise image angles. Vox mode provides voice-activation: when baby's up and making sounds, Vox mode automatically turns Secure Start on. This feature is also valuable for surveillance environments, such as offices and loading docks. Secure Start has a range of up to 400 feet and utilizes an advanced 2.4 GHz digital signal to ensure that your transmissions are private and secure. This is especially important in today's bandwidth-crowded households and environments. Your Mobi Secure Start uses a digital transmission to ensure clear and consistent audio transmission. The signal also passes easily through interior walls. However, buildings with metal frames or placing the transmitter near large metal objects may cause signal degradation. If reception is poor, moving the transmitter or receiver may fix this problem. The Secure Start monitor operates via both an AC power cord or a rechargeable battery pack for the monitor (purchased separately) making it easy to carry from room to room. Each transmitter unit is powered standard AC cord operation. The system also switches automatically to energy conservation mode when the power is low. Mobi joins organizations such as Consumer Products Safety Commission to heighten awareness of vital safety issues. Corded devices must never be placed within reach of children. All Mobi products such as monitors are equipped with Caution and Warning tags on all AC power cords. Mobi's Secure Start comes with one Receiver unit (monitor), one Transmitter unit (camera), 1 Receiver power cord, 1 Transmitter power cord.