Our Xuanyin electronic factory was founded in 2010 which is the professional manufacturer of high quality loudspeaker .we provide OEM and ODM service for oversea customers about portable power amplifier and mobile microphone,we have over 50 workers with full experience of produce high quality loudspeakers,and our professional engineers are in the chief engineer leadership who are with more than 10 years experience of loudspeaker design and produce.Our professional equipments such as The spectrum analyzer,Signal modulator,etc give the products in the high qulity level assurance.