Thanks for your purchasing our product JLT-9021,Through this 2.4Ghz wireless digital video baby monitor video baby monitor ,you can see the image and voice of your baby. This digital baby monitors set allows you to watch your baby with a portable receiver. Unlike with traditional analogue systems, this Digital baby monitor set can dynamically and automatically select best frequency for video and audio transmission. This means you can see good quality video and audio without interference including WiFi. The wireless signal can be kept private from other wireless device to ensure security. The receiver has 2.4 inch Large and Clear TFT LCD Display with 25 fps frame rate. It can support up to 4 cameras for one receiver and you can switch 4 channels within 2.4 GHz. Both the receiver and camera have dual power supply (Battery and AC power) for convenient monitoring. The monitor has LEDs with night vision function so that you can monitor your baby in any time even in complete darkness. Moreover, it has 2 way intercom with Built-in microphone and speaker in both Camera and Receiver for audio and video monitoring. It also has Voice Control (VOX) function and connection to TV with AV cable. Keep an eye on your baby while getting things done around the house with this wireless baby monitor. This system transmits up to 250ft and the built in rechargeable battery allows the camera to run for 5hours straight. The picture and audio are great on the 2.4" color TFT LCD module, which is powered by an included adapter. There are also 10pcs build in IR LEDs, which will allow you to see, even while your baby sleeps.Chaina