Contact

We are available for any questions or suggestions. 

ESD GmbH - Division of Radio & Data Systems
P.O. Box 620441
DE-22404 Hamburg 

Tel.:    (+49) 040/53897-114
GSM:   (+49) 0171/3572709 

E-Mail: info@esd-hh.de

Our technical service-partner in China, Hong Kong and Macao:  

Shenzhen WOTO Communication Co. Ltd.

SEG Science and Technology Park
Building 2, Unit A410 (4. Floor)
Huaquiang North Road 
518028 Shenzhen City 
PR China

Contact partner: Mr. Leung (Mandarin or Cantonese) 

Tel.: (+86) 755 83763900 

e-mail: woto@woto.cn

Website: www.woto.cn