Singing Machine
Cube Studio
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Singing Machine SML678 Cube Studio – Portable Bluetooth Karaoke System with Voice Effects, USB Port and Light Show
Introducing the Cube Studio - your ultimate karaoke party partner! This compact and powerful machine lets you transform your living room into a stage and become the star of the show. With room filling sound and 6 voice effects, you can take your performances to the next level. So, grab the mic and let's get the party started!
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Product Features
- Stream digital audio from your Bluetooth® devices (external devices not included)
- 6 voice effects
- Rock the house with Lead Vocal Removal
- Selfie lights for recording
- Includes 2 wireless microphones (2 AA batteries included)
- Record and share your performances via the integrated USB port
- Access thousands of karaoke songs on demand with the Singing Machine mobile app
- Multi-Colored LED Lights that synchronize to the music
- Connect to your personal smartphone or other audio devices using Line-In
- Enjoy 5 FREE karaoke song downloads of your choice
- Up to 4 hours of operation time*
- Experience high-quality sound
- Rock the house with Lead Vocal Removal
* The actual battery life varies from different playback functions and features operation
Included in the box:
Singing Machine SML678
2 wireless microphones
AC adapter
Welcome Kit
Instruction Manual
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Included in the box:
- Two 2.4GHz wireless dynamic microphones (batteries not included)
- AC/DC switching power adaptor (15V/1.5A)
- Welcome Kit
- Instructions manual
- Quick Start Guide
Product Manual
1. Product Cybersecurity Information
1. Product Identification and Version
Product Name/Model:CUBE STUDIO (Model: SML678)
Hardware Version:V1.0
Firmware Version:V1.0
Unique Identifiers:Version 109
2. Network and Communication Interfaces
Bluetooth Version:5.0
Bluetooth Profiles:A2DP, AVRCP, HFP, SPP
Communication Encryption:Enable Bluetooth Secure Connections or not
Authentication Method:PIN code pairing, Just Works, Passkey Entry
OTA Update Support:Yes
3. Security Feature Configuration
Default Password:"0000"
Factory Reset Support:Yes
Logging:Whether security events (pairing failures, firmware update attempts) are logged
4. Security Threat and Risk Analysis (Examples)
Unauthorized Bluetooth connection → requires pairing confirmation
Firmware downgrade attack → OTA must use signed firmware validation
Privacy leakage (device name linked to location) → assess enabling Bluetooth address randomization
2. Component-Level Cybersecurity Information
1. Main Controller Chip / SoC
Model:AC6956C
Chip Security Documentation Link:"Hardware Security Manual"
Known Vulnerabilities:fixed firmware version V1.0
2. Bluetooth Module
Module Model:e.g., TI CC254x, CSR8670, Realtek RTL8763
Bluetooth Stack Version:HCI, L2CAP, SDP, GATT
Security Mechanisms:LE Privacy support, required key size (≥7 octets)
Bluetooth Certification:SIG certification and security testing passed or not
3. Firmware and Software Components
Operating System:FreeRTOS, Zephyr, or bare metal
Third-party Libraries:
Bluetooth stack library (version)
Audio codec library
OTA bootloader
SBOM (Software Bill of Materials) for all components, including versions, sources, known vulnerability tracking
4. Manufacturing and Debugging
Factory test interfaces retained:serial commands, test points
Test mode disabled before shipment:evidence required
Production flashing tools:control measures against firmware leak or malicious injection
3. Lifecycle Storage and Maintenance Information
1. Lifecycle Stage
Security design document, threat modeling report, code review records
2. Testing & Validation — Bluetooth security test report (e.g., pairing sniffing, DoS test)
3. Production — Flashing records, debug port disabled status, unique key injection certificate. Initial firmware version, default security settings, user security guide
4. Operations & Maintenance
Vulnerability disclosure report, OTA update records, user security feedback
5. Last supported security version, notice of no further updates
4. Recommended Storage Format and Location
Storage method:
Internal product security database, PLM system, secure branch of code repo, compliance management tool (e.g., Jira security panel)
Example stored content:
product_security_spec_BT_Speaker_V1.xlsx
bluetooth_security_test_report_V1.0.pdf
SBOM_BT_Speaker_FW1.0.json
known_vulnerabilities_tracking.xls
5. After-Sales Support and Vulnerability Management
1. After-Sales Support Terms
Security Update Support
The manufacturer commits to providing security updates for this product (Model: SML678, CUBE STUDIO) throughout its supported lifecycle. Security updates include firmware patches addressing identified vulnerabilities in the Bluetooth stack, OTA mechanism, and other software components.
Minimum Support Period
The support cycle for this product is at least 3 years from the date of first shipment. During this period, the manufacturer will provide security updates, maintain security response commitments, and address reported vulnerabilities in accordance with the response timeline outlined in this document.
End of Support Notification
Upon termination of the support period, a notice will be published, and the last supported security version will be clearly identified.
Vulnerability Event Description Table
Event ID
Date Discovered
Vulnerability Description
Severity Level
Status (Open/Investigating/Patched/Closed)
Patch Version
6. Additional Cybersecurity Information from R&D Party
1.The R&D party will issue cybersecurity alerts and vulnerability warnings through official channels (e.g., website, security bulletin emails). For identified vulnerabilities, the R&D party will provide corresponding solutions, including but not limited to: firmware patch updates, configuration modification guides, temporary mitigation measures, and permanent fixes. Users may contact the Security Response Center (security@singingmachine.com) to obtain the latest alert information and targeted solutions
2.The R&D party follows industry-leading information security management standards (e.g., ISO/IEC 27001 framework) and adopts multi-layered security protection measures, including:
DevSecOps: Embedding security activities in requirements, design, coding, and testing phases;
Access Control: Role-based least privilege principle and multi-factor authentication;
Data Protection: Encryption in transit (TLS), encryption at rest, and sensitive data masking;
Vulnerability Management: Regular scanning, third-party component vulnerability monitoring, and penetration testing;
Supply Chain Security: Source review and known vulnerability tracking for third-party libraries and components.
3.The R&D party has obtained the following certifications and audit results for its cybersecurity systems:
ISO/IEC 27001 Information Security Management System Certification (valid);
ISO/IEC 27701 Privacy Information Management System Certification (where applicable);
Third-Party Security Audits: Annual penetration testing and code security audits have passed review;
Product Security Certification: Bluetooth SIG security compliance testing passed;
Supply Chain Security Assessment: Compliant with local cybersecurity regulations (e.g., relevant IoT security acts).
4.Based on the most recent internal risk assessment, the security risk posture summary of the R&D party’s business environment is as follows:
Overall Risk Level: Low-Medium (systematic management mechanisms established);
Main Risk Points: Vulnerabilities in third-party open-source components (SBOM monitoring established), access rights to development/testing environments (hardening implemented);
Controlled Items: Network security isolation of production environment, code repository access auditing, 100% employee security awareness training coverage;
Residual Risk Acceptability: All residual risks have been reviewed and documented, remaining within acceptable range;
Cybersecurity Information Receiving Center
This page is dedicated to receiving cybersecurity-related information about our Bluetooth speaker product and its components. You may submit vulnerability reports, security inquiries, or any questions related to product cybersecurity.
Contact Information
Dedicated Contact Email: security@singingmachine.com
Information We Can Receive (including but not limited to)
Security vulnerabilities in product firmware or Bluetooth stack
Abnormal security issues during pairing and connection
Privacy leakage risks or data security concerns
Known vulnerability alerts for third-party components
Security maintenance inquiries throughout the product lifecycle
Response Commitment
Upon receiving your report or inquiry, we commit to:
Acknowledge receipt within 5 business days
Provide initial assessment within 15 business days
Follow up continuously until the issue is resolved (where applicable)
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