Suitable for small surveillance area, such as House, Small Super Market, Gas Station,Villa,etc Reasonable price Main ... Channel audio output High quality images, sharpness and color adjustable for each channel Display modes: full screen, 4 images, 8 ... , record, backup & setup Specifications: Model Number9804H9808H9816H Notice:Using Iphone for mobile viewing, users need to install H.264 media player ...