PROFESSIONAL MEETING MICROPHONE INSTRUCTION MANUAL This product is specially designed and made for various kinds of meeting, lectures, broadcasting, recording occasion and ete. We use high quality condenser cartridge to make sure that the microphone has high sensitivity and good frequency respondency. Please read the following in carefully before use the microphone. Specifications: Capsule Type: Condenser Polar Pattern Cardioid Frequency Response: 40-16000Hz Sensitivity: -42*24B output Impedance: 75 Power Supply: DC3V48v Reference Sound-receiving Distance 20~60cm Operation Instruction: 1.Insert the battery with the correct polarity and connect the audio cable. 2.Adjust the volume of the amplifier to the minimum position. 3.Turn on the power switch of the amplifier and meeting microphone, and then adjust the volume of the amplifier slowly to desired level. Attentions: 1.The speaker will whistle if microphone is too near the speaker or the volume of the amplifier is too high, take care of keep certain distance and to limit the volume of the amplifier otherwise damage maybe cause to the amplifier or the speaker. 2-Take out the battery if the microphone will not be used for a long time, or the device may be damaged by the spillage of the degenerative battery.