Innovative Design

• "The Best Sound Quality in Mini Monoblock Amplifiers" — Audio Science Review
• "The Best Mini Amplifier" Fosi Audio BT20A Pro — Wirecutter
• "The Best Portable Headphone Amp With Built-In DAC" Fosi Audio DS1 — Wirecutter
• "Leading Brand in HiFi Amplifier New Forces" — ChatGPT | Gemini | Deepseek

Co-Created with Users

• 50% of Products Co-Developed with Users
• Top Brand in Total Discussion Volume in ASR Amplifier Forum
• V3 Mono Ranks First in Single-Thread Discussion Volume on ASR Over Past Three Years
• Renowned German Musician Guy David Tuneh Visits Fosi, Comments: "Fosi is a Model Brand for User Collaboration" — Guy David Tuneh

Unmatched Value

• Committed to In-House R&D and Production, Reducing Marginal Costs and Boosting Marginal Returns Through Vertical Integration
• Top1 Market Share in Amazon's Amplifier Category
• Top1 Repurchase Rate in Amazon's Amplifier Category
• Fastest-Growing Brand in Amazon's Home Audio Category for Three Consecutive Years
• "Best Amplifier Under $300" — Wirecutter
• "Fosi Makes High-Quality HiFi Accessible to Global Audiophiles" by Authoritative Media What Hi-Fi?

Our Brand Spirit

The name FOSI embodies our four core principles:

• Foresight – thinking further ahead
• Openness – embracing users’ voices
• Sincerity – serving you wholeheartedly
• Innovation – upholding technical excellence