How do you operate it? 1.Open the botton cover of the transmitter, insert the battery with the correct polarity and close the bottom cover until it clicks shut. 2.Insert the Mic. connector into the socket of transmitter. 3.Open the battery cover of the receiver, insert a AA battery into the receiver with correct polarity and close the battery cover. 4.Plug the receiver into the input socket for microphone of amplifier, set both switch of transmitter and switch of receiver to ON position, then the pilot lamps and are on that indicates a good condition and it is ready for operation. Turning the volume control can adjust the volume of transmitter. Attentions: 1.If acoustic quality and volume is abnormal or receiving distance is shortened, the batteries in transmitter and receiver should be replaced, if thereafter still not in normal operation, you can carefully trim the frequency by adjusting the screw in receiver with a screwdriver to make it become normal operation. 2.If your microphone isn"t used for a long period, the battery should be taken out to avoid its deterioration and the damge of components. 3.If two wireless microphones are used at the same time, you should use them with one red and another green lamp and cannot use them with the same colour. 4.If the microphone is too close to the speaker or the volume of the amplifier is too loud, shrill sound will occur and that may damage the amplifier or speaker, please keep microphone away from the speaker and turn down the volume of amplifier. Package contents: 1x Transmitter 1x Receiver 1x Head microphone 1x Tie mirophone 1x AA battery for receiver 1x 9V battery for transimitter 1x Manual