... channel support IE broswer. 1,factory price 2,high quality 3,2years warranty USB DVR 4 Channel1. Four channels Video input, resource 25fps ... , mimeograph, backup function.7. Long-distance real-time monitor, sustain network browser pan/tilt control, dynamic domain name. 8. Sustain long ... 10. Auto send alarm email, sustain mobile phone moving monitor. High quality USB DVR