1, computer. Desktop computers and computer motherboards have vacant PCI slots, you can use the built-in sound card. Laptops and desktop computers can use an external sound card, with a USB port access.
2. Sound card. An external sound card can effectively prevent electromagnetic interference, which the built-in sound card does not have, so its sound quality will also be a little better.
3, camera. Through the webcam in the network to have images, sound conversation and communication.
4, microphone. Currently widely used condenser microphone and electret microphone. To stable performance, good sound quality, no noise interference.
5, bracket. Camera just fixed monitoring a position does not need to rotate, then only use the camera bracket can meet the requirements. Ordinary camera bracket installation is simple, inexpensive, and a wide variety. Ordinary bracket has a short, long, straight, curved, according to different requirements to choose different models.