Dear Sir or Madam:

Good day!  Through internet we found your contact details. May we sincerely introduce ourself also our business to you?
Ease Vision Digital Tech Co., Ltd locates in  Guangdong, Southern China, which is in the Pearl-River-Delta.   We specialize in electronic products~{!/~} developing and manufacturing, our main products are mp3 and mp4.
Would you please let us know any information of your company and your business so as to see if we can meet your needs and set up favorable relationship with you.  If necessary, we can arrange catalogue or samples for your easy reference.
Thank you very much for your kind attention!

With best regards,
Minnie chan