What is the warranty period?

18-month warranty covering manufacturing defects and battery replacement.

What is the average lead time?

Within 15 workdays for both peak and off-season.

B39 Portable Wireless Headphones Foldable MP3 Player Headset Microphone LED Colorful Lights UV Waterproof Function Bt Headset

Name: B39 Portable Wireless Headphones Foldable MP3 Player Headset Microphone LED Colorful Lights UV Waterproof Function Bt Headset
Brand: Chengdu Zhihanfa Technology Co., Ltd
SKU: 2136742032

Sichuan, ChinaChengdu Zhihanfa Technology Co., Ltd

US$4.40-5.70

1 Piece

Product profile

Customization

Available

Style

In-ear

Usage

Mobile Phone, MP3 & MP4, Computer, Game Player, Aviation, DJ

Model NO.

B39

Bluetooth Version

5.3

Soundtrack

Dual Track

Function

Bluetooth

Characteristics

Power Display

Color

White

Specifications

HFP

Distance version

Class B

Transport Package

Carton

Specification

15*15*20

Trademark

D20

Origin

Shenzhen

HS Code

8517629400

Key features

IP67 Waterproof Design: Heavy sweat and shower-proof with IP67 rating for industrial and fitness use.

Bluetooth 5.3 Technology: Latest Bluetooth 5.3 version ensuring stable connection up to 20m range.

12Hr Battery Life: 12 hours playback and 150 hours standby with magnetic pogo-pin charging.

Lightweight Comfort: Weighs only 98g, lighter than sunglasses, with low-profile 8mm thickness.

Dual Beamforming Mic: MEMS microphones with wind noise reduction algorithm for clear calls.

18-Month Warranty: Covers manufacturing defects and includes battery replacement program.

Custom Logo Service: Supports custom logo embroidery with MOQ of 300 pieces.

Safety Certified: FCC, CE, RoHS certified and EN 455 Class 1 skin-contact safety standard.

Company profile

Chengdu Zhihanfa Technology Co., LtdSichuan, China

Business Type: Trading CompanyExport Year: 2025-12-28Average Response Time: ≤5.84hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, EXW, DDP, DAP, Others

AI-Powered supplier vetting

SummaryThe provided slices contain inconsistent supplier profiles. Chengdu Zhihanfa Technology Co., Ltd. is identified as a China-based trading company, with product coverage including consumer electronics and related categories. Separate descriptions report extensive headphone manufacturing capabilities, certifications, factory infrastructure, production lines, engineering resources, patents, and service experience, but these statements are not explicitly linked to the named trading company. The available evidence supports some capability claims at the described-supplier level, while company-specific conclusions remain limited. The supplier reports ISO-related systems, CCC product certifications, export activity, broad markets, and stated customer coverage, but the export-start date and limited staff-experience data require caution. No financial figures are provided in this assessment.

Supplier typeThe named entity, Chengdu Zhihanfa Technology Co., Ltd., is explicitly classified as a Trading Company. Another description refers to YF as a professional manufacturing supplier, but the slices do not establish that YF and Chengdu Zhihanfa are the same entity.

CertificationsThe supplier descriptions state that ISO9001:2000 has been implemented for many years and that products have obtained safety certificates including China CCC. Additional statements list BSCI, ISO9001, ISO14001, ISO9000, ISO14000, and ISO20000, although the linkage of all listed certifications to the named company is not fully clear.

After-Sales capabilityThe supplier explicitly claims quick response capability and detailed after-sales service, with an aim to meet varied customer needs. This is a stated capability, although no service metrics, staffing details, or case evidence are provided.

R&D capabilityThe supplier describes ten years of product development experience, a dedicated design and engineering team covering ID, 3D, electronics, acoustics, and graphics, plus more than 20 global and 100 domestic design patents. These claims indicate substantial innovation capability for the described product business, though the relationship to the named trading company is not fully established.

Customization capabilityThe supplier reports R&D and product-development experience, OEM and ODM manufacturing experience exceeding 25 years for headphones, earphones, and headsets, and multidisciplinary engineering resources. This supports customization capability for those product categories, subject to confirming that the manufacturing profile belongs to the target entity.

Client casesThe supplier claims to have served more than 100 brands across more than 90 countries and areas, and identifies export markets across South America, Eastern Europe, North America, Southeast Asia, and Western Europe. These are broad experience claims, but no customer names, project descriptions, or independently verifiable case details are provided.