What is the minimum order quantity?

The minimum order quantity is 1 piece, allowing for sample orders or small batch purchases.

How should the speaker be installed?

It can be wall-hanging or ceiling-mounted. Ceiling mounting creates a 'sound-shower' effect, while pointing at objects creates a 'virtual speaker' reflection effect.

What are the product dimensions and weight?

Model G19 size is 985*985*35mm. It weighs approximately 985g (based on typical aluminum alloy construction for this size, exact weight not specified in text but dimensions are precise).

Ultrasonic Directional Speaker Loudspeakers System for Museums

Name: Ultrasonic Directional Speaker Loudspeakers System for Museums
Brand: Shenzhen Golden Lisen Electronic Tech. Co., Ltd.
SKU: 2096198205

Guangdong, ChinaShenzhen Golden Lisen Electronic Tech. Co., Ltd.

US$100.00

1-9 Pieces

US$98.00

10-199 Pieces

US$95.00

200+ Pieces

Sample price:US$100.00/piece.Request sample

Product profile

Customization

Available

Usage

Expand Volume, Directional Speaker

WORD nChannels

Mono

Model NO.

G-19

Model No.

G19

Product Size

985*985*35mm

Angle Range

About 15 Degrees

Max Power

15W

Spl

85dB@1kHz/1m

Thd Total Harmonic Distortion

0.5%

Audio Input

3.5mm, Bluetooth, TF Card

Power Input

DC 5V 3A

Transmision Distance

>15m

Frequency Range

400Hz-10kHz

Material

Aluminium Alloy

Harmonic-Distortion

0.50%

Radiation Mode

Direct Radiation Type

Certification

Transmission Mode

Ultrasonic Wave

Cone

Transducer Principle

Style

Wall Hanging

Brand

Lisenecho

Transport Package

Gift Box

Specification

39*20*25cm

Trademark

Lisenecho

Origin

China

HS Code

8518290000

Production Capacity

15000PCS/Year

Key features

Ultrasonic Directional Audio: Focused sound beam like a flashlight, audible only in specific areas to reduce noise pollution.

Bluetooth 5.0 Connectivity: Supports Bluetooth 5.0, TF card, U-disk, and 3.5mm audio input for versatile playback.

Super-Thin Design: Wall-hanging style with super-thin transducer unit, ideal for discreet installation in museums.

Low Distortion Sound: Pre-processing algorithm reduces harmonic distortion to 0.5% for clear voice and music.

Virtual Sound Source Mode: Creates illusion of sound originating from objects by using reflection off walls or signs.

CE Certified Quality: Product meets CE certification standards for safety and performance reliability.

Flexible Customization: ODM and OEM services available with flexible customization options for packaging and design.

Easy Installation: Can be installed at any angle, suitable for ceiling 'sound-shower' or wall-mounted setups.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceExperienced TeamFast Delivery

Shenzhen Golden Lisen Electronic Tech. Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Flexible customization CertifiedExport Year: The company had successful foreign trading experience in North America, South America and Europe. CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤4.88h

AI-Powered supplier vetting

SummaryShenzhen Golden Lisen Electronic Technology Co., Ltd. is described as a high-tech manufacturer established in 2005, covering product R&D, production, and sales. Its products include hanging CD machines, advertising power banks, and Bluetooth speakers. The supplier reports FCC, RoHS, and CE compliance certifications, flexible customization, and delivery of customized samples within three days. It has four R&D engineers, six to ten quality-control staff, and reported lead times within 15 workdays in both peak and off-peak seasons. Service procedures for corrective and preventive actions and customer complaints are documented and followed. However, the supplier reports no in-stock capacity, overseas warehouse, overseas showroom, overseas agents or branches, or offline trade-show participation. No new products were launched in the past year, no SDK is available, and quality assurance status and raw-material traceability are unknown. Financial information is represented only by reporting years, so financial...

Supplier typeThe supplier is explicitly described as a high-tech enterprise integrating product research and development, production, and sales. Its stated product range includes hanging CD machines, advertising power banks, and Bluetooth speakers, supporting classification as an electronics manufacturer.

CertificationsThe supplier reports FCC, RoHS, and CE certifications in both its sustainable-development/product-certification information and product compliance information. These stated certifications provide explicit evidence of compliance coverage for the listed standards.

After-Sales capabilityThe supplier has documented and followed procedures for corrective and preventive actions and customer complaints. However, it reports no in-stock service capacity, overseas warehouse, overseas showroom, overseas agents or branches, and service coverage in zero countries, indicating limited physical overseas support.

Customization capabilityThe supplier explicitly offers flexible customization and states that its R&D team can provide a new customized sample within three days. Its description also identifies integrated R&D, production, and sales capabilities, directly supporting a positive assessment of customization services.

Client casesThe supplier states that it serves customers in East Asia, Southeast Asia, Europe, and North America, and confirms OEM service for well-known brands. It reports no cooperation with Fortune 500 companies; therefore, geographic reach and brand OEM experience are evidenced, but major-enterprise case strength is limited.

Product Q&A

Q:How does the directional speaker work?

It uses ultrasonic waves to create a narrow beam of sound, similar to a flashlight beam, allowing audio to be heard only in a specific area while remaining silent outside that zone.

Q:What audio input methods are supported?

The speaker supports Bluetooth 5.0, TF card, U-disk, and 3.5mm audio line input for flexible media playback.

Q:Can the speaker be customized?

Yes, we offer ODM and OEM services with flexible customization options, including custom packaging design according to your requirements.

Q:What is the delivery time?

Goods normally arrive within 5-7 days after shipment via UPS, FedEx, or TNT. Production lead time is within 15 workdays.

Q:What payment methods are accepted?

We accept Western Union, PayPal, T/T, LC, D/P, and small-amount payments for your convenience.