Contact information

hifi-express.com • Legal & Customer Support

Contact & Merchant Information

🏢 Business Identity • ✉️ Global Support • ⚖️ Warranty & Service

🏢 Official Store & Legal Entity

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Trade Name / Brand Hifi-express
OFFICIAL STORE
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General Customer Service support@hifi-express.com
Primary Channel
🎧
SMSL Product Support Desk support@smsl.shop
Technical Desk
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Legal Operating Entity VMV TECHNOLOGY (HK) CO., LIMITED
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Physical & Registered Address

Santaidianzi, VMV TECHNOLOGY (HK) CO., LIMITED,
Tsuen Wan, New Territories, Hong Kong SAR

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Specialized Distributor Series Support

Certain series and models are co-developed or distributed via authorized special partners. Regardless of where purchased, if you have after-sales issues or require firmware/technical assistance for the models listed below, please reach out directly to their dedicated service teams:

🔹 Aoshida Audio Dedicated Support service@aoshida-audio.com
Applicable Product Series:
C Series AO Series DO Series HO Series PO Series PS Series
🔹 Shenzhenaudio Dedicated Support support@shenzhenaudio.com
Applicable Product Series:
RAW- Series SU- Series SD- Series DA Series SH- Series
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Global Active Support Hours & Response SLA

🇺🇸 America (PST) 17:30 – 01:30
🇷🇺 Moscow Time (MSK) 04:30 – 12:30
🇩🇪 Germany / CET 02:30 – 10:30
⚡ Rapid 20-Minute Reply Commitment:
• Emails received during the active hours above will typically be answered within 20 minutes.
• Emails sent outside of active hours will be handled promptly on the next business day.
• Follow-up policy: In case of unexpected server/spam filter oversights, if you do not receive a response within 2 business days, please kindly resend your email.
💡 Friendly Reminder Before Contacting: To help us expedite your technical support or warranty request, please include your Order Number, Product Serial Number (S/N), and a brief description or short video of the issue when sending your inquiry.