What is the frequency response range of the speaker?

The frequency response range is 20Hz-20000Hz.

Mini Cheap Hands-Free Cute Heart-Shaped 3D Wireless Bluetooth Noise Cancelling Red Earphone Earbud Factory for iPhone

Name: Mini Cheap Hands-Free Cute Heart-Shaped 3D Wireless Bluetooth Noise Cancelling Red Earphone Earbud Factory for iPhone
Brand: NINGBO HAISHU HOPE-U INTERNATIONAL TRADING CO., LTD.
SKU: 2073533375

Zhejiang, ChinaNINGBO HAISHU HOPE-U INTERNATIONAL TRADING CO., LTD.

US$4.84

100 Pieces

Product profile

Customization

Available

Style

In-ear

Usage

Mobile Phone

Model NO.

Love Headphone

Bluetooth Version

5.3

Soundtrack

Bilateral Stereo

Function

Bluetooth

Characteristics

Support Music

Color

White

Specifications

HSP

Interface

Type-C

Transmission Distance

15 Meters

Control Mode

Touch Control

Battery Capacity

Polymer 300mAh with Protective Plate

Standby Time

20 Hours

Talking Time

6-7h

Music Time

6-7h

Charging Time

Input Current

DC 5V

Output Current

3.7V/40mAh

Frequency Response Range

20Hz-20000Hz

Transport Package

Box

Specification

35mAh *2

Trademark

OEM

Origin

Shenzhen

HS Code

851762990

Production Capacity

50000pieces/Year

Key features

Bluetooth 5.3 Technology: Features advanced Bluetooth 5.3 chip for stable and fast wireless connection.

Long Battery Life: Provides 6-7 hours of music playback per charge and up to 20 hours with the charging case.

Cute Heart Design: Mini heart-shaped earbuds with in-ear style, combining aesthetics with functionality.

Touch Control: Supports intuitive touch control mode for easy operation of music and calls.

Fast Charging: Quick charging via Type-C interface, reaching full charge in approximately 60 minutes.

Company profile

NINGBO HAISHU HOPE-U INTERNATIONAL TRADING CO., LTD.

Zhejiang, China

Business Type: Manufacturer/FactoryExport Year: 2008-03-13Nearest Port: Ningbo, Shanghai, ShenzhenAverage Response Time: ≤11.72hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DDP, DAP

AI-Powered supplier vetting

SummaryNINGBO HAISHU HOPE-U INTERNATIONAL TRADING CO., LTD. is identified as a China-based limited company and manufacturer/factory operating from Ningbo, Zhejiang. It supplies outdoor camping products, consumer electronics, daily necessities, beauty devices, and related promotional products. Evidence indicates four production lines, 6–10 quality-control staff, 6–10 years of R&D-engineer experience, an off-peak lead time of one month, and peak-season fulfillment of 2–3 months. The supplier reports BSCI, ISO 9001, and ISO 14064 certifications, along with inspection before shipment. It supports product development involving 3D design, samples, and tooling, and reports Walmart and Daiso as customers. However, after-sales processes, financial credibility, and the scope or validity of certifications are not sufficiently documented in the provided information.

Supplier typeThe supplier is described as both a trade company and a manufacturer/factory. It is a limited company located in Ningbo, Zhejiang, China, with a stated operating address and self-described manufacturing status.

CertificationsThe supplier reports holding BSCI, ISO 9001, and ISO 14064 certifications. The slices do not provide certificate numbers, issuing bodies, validity dates, or covered facilities, so the certifications are reported but not independently verifiable from the available evidence.

R&D capabilityThe supplier reports launching more than 25 new items monthly, maintaining 6–10 years of R&D-engineer experience, and developing original designs intended for patent protection. It also supports 3D design, 3D samples, and tooling for new products, providing explicit evidence of product-development activity.

Production capacityThe supplier reports four production lines, 6–10 quality-control staff, headphone output of 5,000,000 pieces annually, a one-month off-peak lead time, and a peak-season order-fulfillment period of 2–3 months. It also states that every product is inspected before shipment, indicating defined production and quality-control resources.

Customization capabilityThe supplier explicitly states that it cooperates with customers on new-product development, including 3D design, 3D samples, and tooling. Its reference to original design and patent protection further supports customization and development capability.

Client casesThe supplier identifies Walmart and Daiso as customers and reports regional sales across the USA, Japan, Germany, Spain, and France. The trade data also lists DIGITAL DOCTOR PRIVATE LIMITED as an associated buyer, but only one trade transaction is shown, and no order scope or independently verified customer reference is provided.