Product information: Name: 5.8G 20mW wireless audio and video transmitter module Model: TX5813 Receiver Frequency: 5645-5945MHz; 8channels Transmission power: 13dBm/20mW Launch distance: 300 meters Frequency control: built-in frequency phase-locked loop AV input: direct input of analog audio and video signals Supply voltage: 3.7-5.5V Supply current: 80mA Dimensions: 22 x 19 x 3mm Color: Blue & Silver Material: PCB+metal Package Contents: 1 x Wireless Audio Video Transmitter Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.