Unobstructed transmission distance is up to 200 meters. Supports transmission through walls. Digital screen displays channels for convenient and intuitive selection. Wireless anti-interference technology effectively blocks interference from signals such as walkie-talkies and wireless routers. Supports PAL and NTSC audio and video transmission. The transmitter supports one audio and video signal input, and the receiver supports one audio and video signal output. When on the same channel, the transmitter and receiver can be used one-to-one or one transmitter to multiple receivers simultaneously. Aluminum alloy shell provides effective heat dissipation for extended equipment life. Full hardware design requires no software installation or settings for simple plug and play operation. Specifications: Wireless Frequency Band: 2.4GHz Format: PAL and NTSC Interface: AV Transmission Distance: 200m Sensitivity: -90dBm Transmit Power: 50mW Channel Switching: 8 Groups Video Input and Output: 1Vp-P (PAL and NTSC) Audio Input and Output: 1Vp-p (Stereo) Material: Aluminum Alloy Power Input: 5v-1000mA Working Temperature: 32 to 104°F or 0 to 40°C Storage Temperature: -4 to 140°F or -20 to 60°C Voltage: AC100-240V Origin: China Condition: New Plug Type: EU Plug Package Contents: 1 x Transmitter 1 x Receiver 2 x AV Cable 2 x Adapter 2 x Wall-Mounted Accessories 1 x English Manual