Q-See 2.5" TFT Baby Monitor with Wireless Night Vision & Audio Camera The Q-See 2.5" TFT Wireless Baby Monitoring System with Night Vision and Audio Camera is one of the most thorough and complete monitoring systems on the market. 2.4GHz technology gives you the freedom to monitor your child or any room that needs your attention without actually being in the room. Feel free to roam with a portable high-resolution LCD monitor that can fit into your palm or pocket allowing free movement of up to 300-feet away from the cameras. With Motion Detection you can monitor both sound and movement.