... Client : 1,4,9,16,25,36, 64,81-channel , no user limited , centralized monitor, remote record and ... playback , Skype message alarm, skype telephone alarm5. System security : Supports three-level account, password, user multi- ... (coordinate to server) 7. Visitors Online : Support 8 visitors viewing on line at the same timeFeature:Others: ... Package size :200*120*179mm (L*W*H)Certification:shipment: