Youlian Yuedong Privacy Policy

Welcome to the Youlian Yuedong smart audio device control application! We highly value your privacy and personal information security. This Privacy Policy explains how we collect, use, store, and protect your personal information, as well as your rights.

Youlian Yuedong is a professional audio device control app that connects to your audio devices via Bluetooth Low Energy (BLE), providing functions such as sound adjustment, lighting control, and scene mode switching. Please read this policy carefully before using our services. If you do not agree, please do not use our services.

1. Information We Collect

1.1 Information You Provide

• Account information: phone number, username, avatar, email (optional)
• WeChat login info: OpenID, UnionID, nickname, avatar
• Verification info: SMS verification code
• Device configuration: audio settings, presets, scene modes, lighting preferences
• User feedback: issues and suggestions submitted through the app

1.2 Bluetooth Device Information

• Bluetooth permissions for scanning and connecting
• Device info: model, firmware version, name, MAC address
• Connection records: connection status and history
• Device parameters: EQ, DSP settings, lighting data

1.3 Automatically Collected Information

• Device info: model, OS version, app version
• Logs: usage records, crash logs, error reports
• Network info: network type and status
• Storage access: for saving and importing/exporting configs

1.4 Information We Do NOT Collect

• Location data
• Contacts or photo library (unless uploading avatar)
• Audio or video recordings
• Call logs or SMS content

2. Purpose of Using Information

• Device connection and control
• Configuration management and synchronization
• Firmware updates
• Account services
• Cloud sync (with authorization)
• Product optimization
• Technical support
• Security protection
• Legal compliance

3. Storage and Protection

3.1 Storage Location

• Local storage: configs and history stored on your device
• Cloud storage: encrypted storage on servers (if enabled)
• Servers located in mainland China

3.2 Retention Period

• Account data: during account validity
• Device configs: until deletion or account closure
• Logs: up to 6 months
• Account deletion: data removed within 30 days

3.3 Security Measures

• HTTPS/TLS encryption
• AES-256 encryption for sensitive data
• Strict access control
• Security audits
• Incident response mechanisms

3.4 Bluetooth Security

• Encrypted pairing
• Encrypted command transmission
• No background scanning without user action

4. Sharing, Transfer, and Disclosure

We do not sell or trade your personal information.

4.1 Authorized Sharing

• With your consent
• Community sharing features (if enabled)

4.2 Service Providers

• Alibaba Cloud (storage & infrastructure)
• WeChat Open Platform (login)
• SMS providers
• Push notification services
• Analytics (anonymous data only)

4.3 Legal Requirements

• Compliance with laws
• Protection of rights and safety
• Fraud prevention

4.4 Business Transfers

In case of merger or acquisition, your data may be transferred under the same protections.

5. Your Rights

5.1 Access

• View account info
• View device data
• Export configurations

5.2 Modification & Deletion

• Edit profile
• Delete device records
• Clear cache

5.3 Permissions

• Bluetooth, storage, and network permissions can be disabled

5.4 Withdrawal & Account Deletion

• Disable cloud sync
• Withdraw consent
• Delete account

We will respond within 15 working days.

6. Third-Party SDKs and Services

6.1 Required Services

• Alibaba Cloud – data storage
• WeChat Open Platform – login
• SMS services – verification codes
• Push notifications
• Crash analytics

6.2 Optional Services

• Community sharing
• Feedback systems

7. Protection of Minors

This app is intended for adults. Minors should use it under guardian supervision. If we collect data from minors without consent, we will delete it promptly.

8. Policy Updates

• In-app notifications
• Settings updates
• Push messages

Major changes will be notified at least 7 days in advance.

9. Contact Us

• Email: 756237727@qq.com
• Phone: 17625925884 (Weekdays 9:00–18:00)

We respond within 15 working days, or within 24 hours for urgent security issues.