What is the working distance of the Bluetooth connection?

The working distance is about 12m-15m.

Does it support connecting to two devices at the same time?

Yes, it supports connecting to two devices simultaneously.

What noise cancellation technology is used?

It adopts advanced CVC6.0 active noise-cancellation technology.

F9 Tws LED Power Display Wireless Bluetooth Earphone with Charging Case

Name: F9 Tws LED Power Display Wireless Bluetooth Earphone with Charging Case
Brand: Shenzhen Runton Technology Co., Ltd.
SKU: 888570265

Guangdong, ChinaShenzhen Runton Technology Co., Ltd.

US$5.50

30-299 Pieces

US$5.30

300-999 Pieces

US$5.00

1,000-499,999 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, Call Center, MP3 & MP4, Computer, Game Player, Aviation, DJ, Sport

Model NO.

Bluetooth Version

V5.0

Soundtrack

Dual Track

Function

Bluetooth, Multimedia, USB

Characteristics

Support Music

Color

Multi Colors

Specifications

A2DP

Distance version

Class B

Product Name

F9 Power Display Wireless Earbuds

Support Memory Card

Battery

50mAh

Impedance

32 Ohm +/-15%

Active Noise-Cancellation

Yes

Item Name

in Ear True Wireless Earbuds

Frequency Response Range

20-20000Hz

Talking Time

About 2-4 Hours

Charging Time

1 Hour

Charge Case Battery

1200mAh

Transport Package

Color Retail Box

Specification

ABS

Trademark

Neutral (Support OEM/ODM)

Origin

China

HS Code

8518301000

Production Capacity

20000pieces/Month

Key features

Bluetooth 5.0 Connectivity: Features advanced Bluetooth V5.0 for stable connection and fast pairing.

IPX7 Waterproof Rating: Daily waterproof and sweatproof design suitable for sports and outdoor use.

Active Noise Cancellation: Adopts CVC6.0 technology for clear voice calls and reduced background noise.

Long Battery Life: 1200mAh charging case provides extra battery life; 3.5 hours talk time per set.

Hi-Fi Stereo Sound: Delivers 8D stereo surround sound with HD microphone for immersive audio.

Dual Device Connection: Supports connecting to two devices simultaneously for seamless switching.

Power Bank Function: Large capacity charging case acts as a power bank for emergency charging.

Comfortable Fit: Lightweight in-ear design ensures comfort and no pressure during extended use.

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.