10x Zoom Multiple Streams 802.11b/g/n Wifi P/T/Z Network Camera PZ8111W VIVOTEK PZ8111W/21W is a high-performance network camera featuring 10x optical zoom and pan/tilt functionality. The camera is designed for indoor surveillance applications such as retail stores, offices or banks. The built-in 10x motorized optical zoom module provides greater depth of field when zoomed in. Therefore, it can display clear-cut images on near or distant objects. Features 10x Optical Zoom Lens Motorized Pan/Tilt (Pan: -150? ~ +150?; Tilt: -45? ~ +90?) Real-time H.264, MPEG-4 and MJPEG compression (Triple Codec) Multiple Simultaneous Streams 3GPP Mobile Surveillance Built-in 802.11b/g/n WLAN Two-way Audio Built-in/External Microphone Switch