1,Built-in memory to store the setting data, which can not be lost after power off
2,Continuous 355°pan turning, 90° tilt turning .
3,Wi-Fi/802.11/b/g/n ,PC CMS to control multi-cameras
4,Support Hikvision,, Da Hua, NVR . ONVIF platform access, support for mainstream ONVIF NVR protocol access9,
5. Motion detection, email alert, FTP upload
6. Support Video Mask and Special Area Dection
7,Built-in power surge/lightning protection
8,Support IE remote browse their password for remote management, streaming media forwarding phone HD monitor
9. Supports 355 degree automatic scanning ;Support two points between cruise;Support preset point;Rotational speed can be adjusted
10. P2P, PNP: Plug&play, Support QR code scanning to view on Iphone and android Mobiles
11,Abnormal automatic recovery, network outages automatically connect function
12,Hardware compression, watchdog, 32M Flash, 128M DDR2.
13,H.264 video encoding,support dual-stream, AVI format; support stream 0.1M ~6Mpbs Adjustable;
14. Built in microphone and speaker, able to achieve high-definition voice intercom
15. 20X Optical Zoom
16. product has been certified by CE

More detail found here