1.Unobstructed Transmission Distance Is Up To 200 Meters. Support Transmission Through Walls; 2. Digital Screen Displays Channels, Making Channel Selection Convenient And Intuitive; Wireless Anti-Interference Technology Effectively Blocks Interference From Wireless Signals Such As Walkie-Talkies And Wireless Routers; 3. Support Pal/Ntsc Audio And Video Transmission; The Transmitter Supports 1 Rca Audio And Video Signal Input, And The Receiver Supports 1 Rca Audio And Video Signal Output; 4. When On The Same Channel, The Transmitter And Receiver Can Be Used One-To-One Or One Transmitter To Multiple Receivers At The Same Time; 5. Aluminum Alloy , Super Heat Dissipation Effect, Effectively The Long Working Time And Life Of The Equipment; Full Hardware Design, No Need To Install Software Or Any Settings, Simple Installation, Plug And Play. Description: 1.: Wireless 2. Frequency Band: 2.4GHZ 3.Format: PAL/NTSC 4. Interface: RCA (AV) 5.Transmission Distance: 200m 6. Sensitivity: -90dBm 7. Transmit Power: 50mW 8. Channel Switching: 8 Groups 9. Video Input/Output: 1Vp-P (PAL/NTSC) 10.1 Channels Audio Input/Output: 1Vp-p(Stereo) 11. Material: Aluminum Alloy 12.Power Input: 5v-1000mA 13. Working Temperature: 32~104F/0~40C 14. Storage Temperature: -4~140F/20~60C 15.Voltage: AC100-240V 16.Colour:As Shown Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Plug Type :AU Plug,it applies to Australia and so on. Package Contents: 1 x Transmitter 1 x Receiver 2 x AV Cable 2 Adapter 2 x Wall-Mounted Accessories 1 x English Manual 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.