FiiO BTR3K Dual AK4377A Balanced Bluetooth 5.0 Amp & USB DAC

Turn your everyday listening into a true Hi‑Fi experience. The FiiO BTR3K is a compact, pocket‑sized Bluetooth amplifier and USB DAC that unlocks the full potential of your wired headphones and IEMs. With dual AK4377A DAC chips, balanced 2.5 mm and single‑ended 3.5 mm outputs, and support for LDAC and aptX HD, it delivers clean, powerful, and detailed sound wherever you go – from your commute to your desktop setup.

Clip it to your shirt, drop it in your pocket, or place it on your desk – the BTR3K keeps your music wireless, lossless, and effortless, while also handling hands‑free calls with clarity.

🌟 Why You’ll Love It

• Hi‑Fi sound on the go – Dual AK4377A DAC chips provide low noise, high resolution audio so your wired headphones sound richer, clearer, and more dynamic than straight from your phone or laptop.
• Premium Bluetooth 5.0 codecs – Enjoy near lossless wireless audio with support for LDAC, aptX HD, aptX, aptX LL, AAC, and SBC, ensuring stable connection and better sound quality across Android, iOS, and more.
• Balanced & single‑ended outputs – Choose between 2.5 mm balanced and 3.5 mm single‑ended headphone outputs to match your favorite IEMs and headphones, with improved separation and control on the balanced out.
• USB DAC mode for computers – Connect via USB to your laptop or desktop and use the BTR3K as a dedicated USB DAC/amp for a cleaner, more powerful audio output than your built‑in sound card.
• Hands‑free calling – Built‑in microphone and Bluetooth controls let you take calls, control playback, and adjust volume without touching your phone.
• Compact, clip‑on design – Lightweight body with a convenient clip makes it easy to attach to your clothing or bag for tangle‑free, on‑the‑move listening.
• Multi‑device flexibility – Perfect for upgrading the sound of smartphones, tablets, laptops, DAPs, and even some game consoles, while keeping your favorite wired headphones in play.
• Everyday listening, elevated – Whether you’re streaming, gaming, watching movies, or taking calls, the BTR3K adds clarity, depth, and volume headroom your devices alone can’t match.

⚙️ Full Specs

💬 Real Experiences

• “Huge upgrade from my phone’s jack” – Users report tighter bass, clearer vocals, and more detail from the same headphones.
• “Perfect for commuting” – Clip‑on design and strong Bluetooth connection make it ideal for daily travel and office use.
• “Great value Hi‑Fi” – Audiophiles love the combination of dual DACs, balanced output, and advanced codecs at this price point.

🛒 Get Yours