What are the payment terms?

We accept T/T with 30% deposit and balance before shipment, or L/C.

What formats are supported for USB and SD cards?

The system supports MP3 format files on USB, SD, and MMC cards.

What is the minimum order quantity?

The minimum order quantity is 100 pieces.

4" Portable Multifunction Bluetooth Speaker System PT-440m OEM Guangzhou

Name: 4" Portable Multifunction Bluetooth Speaker System PT-440m OEM Guangzhou
Brand: Guangzhou strong sound electronic equipment Co., Ltd
SKU: 892631405

Guangdong, ChinaGuangzhou strong sound electronic equipment Co., Ltd

US$39.00-89.00

100 Pieces

Product profile

Customization

Available

Type

Bluetooth Speaker

Amplification Type

Active

Model NO.

PT-440M

Speaker Material

Plastic

Usage

Portable Player, Mobile Phone, Computer, Stage/DJ, Radio, Karaoke

Sound Channel

Single Channel

Special Function

Memory Card Support, USB Disk Support, With Remote Control, Radio

Chargeable

SNR

91-100dB

Display Type

Digital Display

Compatible Product

Universal

Output Power

40W (Max)

T.H.D.

<1%

Frequency

VHF Standard, UHF Optional

Frequency Response

55Hz-20kHz

Drivers

Tweeter1.5"Horn*1,Woofer 4.5"*1

Line in

"Wired Microphone ×1 , Aux × 1 "

Power Supply

External DC15V/3A Switching Power Supply

Battery

Built in 12V/1200mAh Rechargeable Battery

Weight

3.5kg

Dimension

225X 225X325mm

Transport Package

Plastic Bag + Thick Foam + Strong Brown Packing Ca

Specification

225 X 225 X 325mm

Trademark

OEM/Like Audio

Origin

China

HS Code

8518220000

Production Capacity

10000PCS/Month

Key features

Versatile Audio Input: Supports USB, SD/MMC cards, wired/wireless microphones, and AUX simultaneously.

Powerful Sound Output: Delivers 40W max power with 55Hz-20kHz frequency response and <1% T.H.D.

Portable & Lightweight: Weighs only 3.5kg with built-in battery, ideal for schools and conferences.

Flexible Customization: Offers OEM/ODM services with full, minor, and flexible customization options.

Remote Control Operation: Includes IR remote for digital volume, menu, and mute control.

Battery Status Indicator: Displays 25%, 50%, 75%, and 100% battery volume and charging status.

Dual Microphone Support: Accepts one wired and one wireless microphone input at the same time.

Universal Compatibility: Works with portable players, mobile phones, computers, and stage setups.

Company profile

Guangzhou strong sound electronic equipment Co., Ltd

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 9 years CertifiedNearest Port: Guangzhou Port, Shenzhen PortAverage Response Time: ≤7.07h

AI-Powered supplier vetting

SummaryThe supplier is a China-based limited company established in 2016, with reported export activity, a valid import/export license, and primary products covering speakers, audio equipment, amplifiers, microphones, mixers, and Dante audio. Evidence indicates established service procedures, corrective and preventive action records, technical support, R&D documentation, 3D design services, customization capabilities, and recent new-product development. Production information includes four production lines, six to ten quality-control staff, stated lead times of within 15 workdays in off-peak periods and one month during peak periods, and export markets across Southeast Asia, the Middle East, Europe, and North America. FCC and RoHS certifications are reported, but the supplier lacks a factory environmental impact assessment report. No financial figures are included in this assessment. Customer-specific cases are not provided.

Supplier typeThe supplier is identified as a combined business entity and limited company, operating in Guangdong, China. It is reported as independent of a larger company group and has a valid import/export license, indicating a formally registered standalone trading and manufacturing entity based on the supplied information.

CertificationsThe supplier reports FCC and RoHS product certification capability, and an audit record conducted by BV is listed with a validity period from January 7, 2026 to January 6, 2027. However, the supplier explicitly lacks a factory environmental impact assessment report, so the certification evidence is positive but not comprehensive across environmental documentation.

After-Sales capabilityService capability is supported by written procedures, followed records, an approved supplier list, and a corrective and preventive action mechanism. Technology engineers are also responsible for technical support during production and after-sales service, providing explicit evidence of organized technical and after-sales support.

R&D capabilityThe supplier has R&D engineers responsible for new product development and maintains design input, output, review, verification, and validation documentation for audit. It also reports new products during the past year and provides 3D software design services, supporting a demonstrated innovation function.

Production capacityThe supplier reports four production lines, six to ten quality-control staff, 29 or 56 total employees in different slices, and stated order fulfillment times of within 15 workdays off-peak and one month during peak season. The differing employee counts create a data inconsistency, but the production-line, quality-control, and lead-time information provides explicit evidence of operating production capacity.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. Its engineers confirm customer requirements and provide technical production support, while 3D software design services further support customized product development.