Usage Tips:Suitable for sound cards and stereos, the sound is fuller and more powerfulter using the microphone amplifier, and singing is easy and effortless;Support 48V condenser microphone, dynamic microphone;Balanced amplifier circuit;You can use the mobile phone charging head for charging, the dynamic microphone can be used continuously for more than 10 hours, and the condenser microphone can be used for about 3-5 hours with 48V turned on. Different microphones perform differently;Do not turn on the 48V switch when using a dynamic microphone.Colour:BlackMaterial:Metal + PlasticSpecification: APackage Contents:1 x amplifier1 x Charging Cable1 x 6.5 Audio cableSpecification: BPackage Contents:1 x amplifier1 x Charging Cable1 x XLR cableSpecification: CPackage Contents:1 x amplifier1 x Charging CableSpecification: DPackage Contents:1 x amplifier1 x Charging Cable1 x 3.5 Audio cableOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.