For more help, please feel free to contact us by e-mail. Once receiving your mail, our customer service representatives will respond within a business day. We appreciate your kind patience and understanding.

Email: support@eiweisonic.com

TEL: +86 18688794455

Company Address: Room 306, Building 9, Zone A, Tianliao Industrial Zone, No. 2235 Tangchang Road, Taoyuan Street, Nanshan District, Shenzhen City, Guangdong, China   Postal Code: 518071

Our office time is 9 a.m. - 6 p.m.(GMT+8) from Monday to Friday ( excluded holidays and weekends ). We respond to most emails within a business day, but if you don't get a response from us, please check your spam bin.