E-mail: 

zqfw0535@163.com

Phone/Whatsapp:

+86-15318630927

Address:

No.7 Tongshi South Road, Yantai City, Shandong Province, China

In the era of digital existence, smartphones serve as the central hub for processing personal information, and their built-in microphones’ real-time ambient sound-recording capability has become a potential conduit for privacy breaches. The audio data thus collected can be analyzed using big-data techniques to construct user profiles for targeted advertising, or it can be illegally intercepted by malicious software, inadvertently exposing private conversations—both individual and group—thereby giving rise to new types of information-security threats.
To address the industry’s key pain points, YinDun has innovatively launched a mobile-phone voice-privacy protection solution. This device features a dual-layer protection architecture that combines physical blocking with intelligent interference: on the one hand, it employs a physically isolated microphone takeover technology to sever the phone’s native audio-capture pathway; on the other hand, it utilizes active ultrasonic-band interference to effectively shield against sound-wave acquisition by the phone. This synergistic dual-protection mechanism thoroughly disrupts the phone’s voice-recording function, thereby preventing sound-related information from leaking at the source. Furthermore, once the phone is connected to the YinDun device, external devices can communicate with the phone indirectly via the YinDun, thus avoiding the risk of malware being implanted in those external devices to steal phone data.
The SoundShield product is designed around a minimalist interaction philosophy, offering plug-and-play convenience and portability. When protection mode is activated, it selectively restricts only voice-recording-related functions, ensuring that non-voice operations on the device remain unaffected. This feature makes it particularly well-suited for high-sensitivity scenarios such as business negotiations, classified meetings, and private conversations, establishing an all-day, multi-dimensional voice privacy protection system for users and redefining security standards for mobile devices.

⚫ Prevent the recording and leakage of core business information in business negotiations, important meetings, and other similar settings.
⚫ Protect personal privacy from unauthorized collection in private conversations, one-on-one interactions, and other similar scenarios.
⚫ In public spaces, office environments, and other settings, defend against malware-based audio recording and big-data sound collection.
⚫ All types of confidential communication scenarios, to prevent voice messages from being used for illegal purposes.

Plug-and-play, ultra-simple operation: No complicated setup required—simply plug it into your phone’s charging port to activate protection automatically.

Dual protection, worry-free security: Dual technology—microphone takeover prevention plus ultrasonic interference—provides comprehensive recording suppression.

Performance is visible, and the results are intuitive: Real-time feedback on interference protection status, with clearly observable protection effectiveness.

Lightweight and portable, providing protection on the go: Mobile-grade lightweight design delivers privacy protection anytime, anywhere.

Functionally compatible and seamless to use: Only the voice recording function is disabled; other phone operations remain unaffected.

Voice acquisition blocking: Automatically takes over the phone’s microphone, rendering the device completely unable to capture any meaningful audio.

Ultrasonic interference: Emit ultrasonic waves with a sound pressure level of ≥105 dB to create a noise barrier and interfere with audio recording.

Preventing Trojan Horse Implantation: By disabling data transmission, the audio shield interface prevents external devices from implanting trojans into the phone via this port.

Intelligent Performance Evaluation: The mini-program provides real-time monitoring of protection status and intelligently assesses interference effectiveness to ensure protection efficacy.

Function compatibility retained: All functions except phone calls and voice input work normally and do not affect daily use.

The company places great emphasis on research and development and the commercialization of scientific and technological achievements. It has invested substantial funds in technological innovation and new product development and has established a dedicated R&D department responsible for the organization and implementation of the company’s R&D activities. To further refine the company’s R&D management system and enhance R&D efficiency and management standards, the company has formulated a series of internal rules and regulations. Through the effective implementation of these policies, the company has successfully secured and commercialized numerous scientific and technological breakthroughs.

The company has successively obtained certifications for its Quality Management System, Environmental Management System, Occupational Health and Safety Management System, and Weaponry and Equipment Quality Management System. In the field of military–civilian integration, the company holds numerous proprietary intellectual property rights and cutting-edge technologies, and is committed to providing customers with high-quality products and services.