This high quality wireless air purifier hidden video security camera gives you great range and picture quality. A high quality hidden pinhole camera provides excellent video. Range is up to 300 feet. Fully functional air purifier is powered by the same AC power cord as the camera and transmitter. Use the new MVR-3 super high gain receiver/antenna for an incredible 2500 feet plus range! 2.4 GHz FM synthesized transmitter has full four channel selectability, so up to four units can operate simultaneously in the same area. Low cost, long range, FM synthesized performance and near undetectability in a great concealment combine to make this one of the best covert video values weve ever offered. Perfect for home care monitoring. Also available in color. Size is 8 1/2 high by 8 wide by 5 1/4 deep.Legal WarningComes with functional air purifier camera/transmitter, microwave receiver, power supply, connecting cables and 90 day manufacturer's warranty