Contact Information

Direct Factory Communication & Global B2B Partnership Inquiries

Get In Touch

Factory-Direct Inquiries & OEM/ODM Consultations

Connect directly with our engineering and export team at [email protected]. We specialize in custom smart rings, AI glasses, translation earbuds, and screenless fitness trackers for global importers and B2B buyers.

Company Legal Entity

[email protected]

Verified Smart Wearable Manufacturer & B2B Export Supplier (Est. 2020)

Sales & Engineering Support Email

ZUMU Technology Co., Ltd.

Dedicated English-speaking sales team with guaranteed 24-hour response on business days.

Factory & Headquarters Address

Room 1102, Floor 11, Xiner Sports Center Complex Building, Xiner Community Center Road, Xinqiao Street, Shenzhen, Guangdong, China

Manufacturing Experience

E-E-A-T Verified Production & Quality Control Standards

With over 6 years of continuous international export experience, [email protected] maintains strict quality control and full supply chain transparency for overseas buyers.

Strict Batch Inspection

Every order undergoes 48-hour aging tests, IP68/5ATM pressure-tank waterproof validation, and full SMT AOI functional verification at [email protected].

Compliance & Certifications

Full technical dossiers including Declaration of Conformity, CE, RoHS, MSDS, and UN38.3 battery transport safety reports are supplied per batch.

Comprehensive OEM/ODM Service

Complete buyer-label customization covering laser logo engraving, dedicated APP branding, custom UI watch faces, and drop-tested retail packaging.

Sourcing Process

How To Request Samples & Wholesale Pricing

Follow our standardized B2B inquiry process for rapid sampling, tooling customization, and fast production scheduling.

Step 1: Submit Inquiry Brief

Share target product line, customization requirements, certification scope, and landed cost expectations with [email protected].

Step 2: DFM & Quote Review

Hardware engineers confirm project feasibility, mould availability, unit pricing, and lead time calendar within 24 hours.

Step 3: Golden Sample Testing

A fully functional sample with your custom logo, firmware theme, and retail box draft is dispatched for buyer sign-off.

Step 4: Pilot & Mass Manufacturing

Pilot run validates yield and assembly SOP before mass production begins on the agreed production timeline.

Step 5: QC Inspection & Shipping

Full inspection report, packaging photo/video evidence, packing list, and export compliance documents are issued prior to dispatch.