What is the Bluetooth version and effective distance?

It uses Bluetooth V5.2 with an effective working distance of up to 10 meters.

What is included in the package?

The package includes 1 pair of earbuds, 1 charging box, and 1 user manual.

Can I customize the product name or features?

The product supports customization, including specific product names like 'M21 Enc Bluetooth 5.2 Earphone'.

M21 Tws Earphone 5.2 Wireless Bluetooth Earbuds Noise Reduction Headset

Name: M21 Tws Earphone 5.2 Wireless Bluetooth Earbuds Noise Reduction Headset
Brand: Shenzhen Runton Technology Co., Ltd.
SKU: 1972304382

Guangdong, ChinaShenzhen Runton Technology Co., Ltd.

US$5.50

50-499 Pieces

US$5.30

500-4,999 Pieces

US$5.00

5,000-499,999 Pieces

US$2.50

500,000+ Pieces

Sample price:US$7.50/piece.Request sample

Product profile

Customization

Available

Style

In-ear

Usage

Mobile Phone, Computer, DJ

Model NO.

M21

Bluetooth Version

V5.2

Soundtrack

Dual Track

Function

Bluetooth, Multimedia

Characteristics

Voice Control

Color

Multi Colors

Specifications

A2DP

Distance version

Class B

Product Name

M21 Enc Bluetooth 5.2 Earphone

Support Memory Card

Battery

40mAh

Feature

Super Bass

Active Noise-Cancellation

Yes

Talking Time

About 4-5 Hours

Charging Time

1 Hour

Charge Case Battery

300 mAh

Bluetooth Effective Distance

About 10m

Bluetooth Protocol

V5.2

Transport Package

Color Retail Box

Specification

ABS

Trademark

Neutral (Support OEM/ODM)

Origin

China

HS Code

8518301000

Production Capacity

20000pieces/Month

Key features

Bluetooth 5.2 Connectivity: Features V5.2 Bluetooth protocol with JL6983 chipset for stable connection up to 10 meters.

Active Noise Cancellation: Equipped with active noise-cancellation technology for clear HD conversations and calls.

IPX4 Waterproof Rating: Sweat and water proof design, suitable for sports and daily use in various weather conditions.

Long Battery Life: 40mAh earbuds provide 4-6 hours playback; 300mAh charging case extends total usage significantly.

Transparent Colorful Case: Features a stylish transparent charging case with LED power display and low power consumption.

Super Bass Sound Quality: Dual track sound and super bass feature deliver immersive audio experience for music and calls.

Fast Magnetic Charging: Supports USB socket charging for case and magnetic charging for headphones, taking about 1-1.5 hours.

Universal Compatibility: Compatible with smart phones, tablet computers, and other devices supporting Bluetooth V5.2.

Company profile

Shenzhen Runton Technology Co., Ltd.

Guangdong, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2016-01-01Average Response Time: >24hTerms of Payment: T/T, PayPal, Western Union, etc.International Commercial Terms(Incoterms): FOB, CIF, EXW

AI-Powered supplier vetting

SummaryShenzhen Runton Technology Co., Ltd. is identified as both a trading company and manufacturer/factory in China, focused on consumer electronics such as Bluetooth headsets, speakers, power banks, and related products. The supplier reports six production lines, six plants or production areas, more than 200 experienced workers, ISO 9000 and ISO 9001 certifications, and dedicated quality-control and R&D personnel. Reported annual capacity is 600,000 headsets and 600,000 speakers, with stated lead times of within 15 working days in both peak and off-peak periods. The company exports to a broad range of regions and began exporting in 2016. It describes in-house component and accessory production, testing facilities, mold, injection, cable, printing, painting, spraying, and speaker capabilities. However, the provided information does not sufficiently establish after-sales procedures, financial credibility, specific customization performance, or verified customer case quality. Trade records show limited...

Supplier typeThe supplier is explicitly classified as both a trading company and manufacturer/factory. Its own description states that it has manufactured wireless speakers, headsets, and solar power banks since 2010, supporting a manufacturing role in consumer electronics.

CertificationsThe supplier reports holding ISO 9000 and ISO 9001 management-system certifications. These are explicit certification claims, although the provided slices do not include certificate numbers, validity dates, or issuing-body verification.

R&D capabilityThe supplier reports R&D engineers with 6–10 years of total experience, testing facilities, strong technical force, mold-opening capability, and a stated focus on rapid innovation. These details support innovation-related resources, although no specific patented technology, new-product record, or quantified R&D output is provided.

Production capacityProduction capability is supported by reported 10,000-square-meter premises, more than 200 workers, six plants or production areas, six production lines, in-house injection, cable, printing, painting, spraying, mold, and speaker workshops, plus stated annual capacity of 600,000 headsets and 600,000 speakers. The supplier also reports lead times within 15 working days in both peak and off-peak seasons.