Contact Us

For after-sales service, please ensure that your purchase was from, and attach the order number which we provided.

In order to provide you a better service and speed up responding time, please do provide the relevant information before submitting an inquiry. Please provide us your vehicle models, year of manufacture, and cellphone model for a quick compatibility matching, we will do our best to assist you.

We aim to respond to all inquires within 24 hours.

We only accept inquiries from Ottocast Official Store.
Customer service email:
For Amazon after-service, please contact:
For Distribution and Wholesales, please contact:
For Press, Marketing, and Partnership, please contact:

Service phone: 852-27108200

US Company Address:
20 park street, 20E, Alhambra, CA91801, USA

HK Branch Address:
Rooms 131819, 13/F, Hollywood Plaza, 610 Nathan Road, Mongkok, Kowloon, Hong Kong.

China Company Address:
Longxiang road 9009,zhujiang guoji 18D1, Longgang District, Sshenzhen, Guangdong.
Shenzhen Luzhiyin Technology Co., Ltd.

  • Office Hour: 9:00-12:00; 14:00-18:00. (GTM+8)
  • Monday - Friday