Note:This product does not include a storage bag Before using this product, please read the following steps carefully:1. Connect the RX receiver to the mobile device with the mobile phone cable, and use the camera cable to connect the camera video recorder/audio/sound card/mixer and other devices with 3.5MM/6.35M audio jacks2. Press the RX receiver switch key and turn on the power switch 3. When you see that the indicator light of the RX receiver is green, the receiver is in standby state, and the RX receiver and TX transmitter are connected and used normally.RX receiver1/Power switch2/Monitor interface3/Audio output OUT4/Charging port TYPE-c (the charging light is red, the light is off when it is full> the green light is on for standby, the red light is on for the A channel is on, the blue light is on for the B channelTX transmitter4. When the green light of the TX transmitter is on, it is in standby. When the red light is on, it is channel A. When the blue light is on, it is channel B.5/Power switch6/SET frequency adjustment7/volume plus+8/volume reduction9/audio input10/Built-in microphone11/External microphone jack (plug in external microphone, built-in microphone does not work)