Workmanship and
Technology: Using advanced circuit design, great chips, clear the receiving blind angle to make the system's receiving signal steady. the housing is made by tough metal material. It is the best choice of monitor product. Take it out of your case or pocket, plug it in, turn on the power, Long press the CHANNEL BUTTON key to match transmitter and receiver at the same time, and play. That's how simple it is
What's in the Box: U4 system, 1/4 TS Adapter, Charging cable, User Manual