Dear Sirs, This is Bill Bai.We are Enping Hengda Electronic Industry Co.,Ltd in China.We are professional wireless microphone manufacturer.You can visit our website www.langpu.com .Our company has CE,FCC.and ISO-9001Certificate.We supply products below: 1, PLL synthesized UHF MODELS 2, Fixed working frequency VHF and UHF Models 3 P.A.SYSTEM 4. Conference microphone We hope to establish longterm coroperation with you in the futurer.We welcome you can visit our factory.Then you will believe our quality and competitve prices.Thank you for your attention.Pls kindly give me response . Your sincerely Bill Bai Bill BaiTEL:86-20-37885139FAX:86-20-87600728