This Four (4) channel DVR offers higher resolution than D1 in realtime recording, viewing and playback. Its state of the art D1 surveillance allows you to watch full screen monitor high resolution video playback and recording. Stream live from your Internet or 3G smartphones and iPad. The two 520TVL cameras provide clear video through high resolution image sensors with night vision up to 35 feet.
swann dvr4 1200 4 channel digital video recorder with smartphone viewing and 4 x pro 560 ccd cameras with 500gb hard drive black uk on USA sites