Portable FM radio with built-in USB-C amplifier.
Design: Retro, ultra-thin metal body (13 mm), analog PVR wheel
FM Radio: Si4831 chip, 64–108 MHz coverage, built-in antenna or via headphones
Sound: BASS+ and 3D analog modes (DDB technology)
Battery: 300 mAh, +8.5 hours of battery life, use while charging (USB-C)
DAC/AMP Function: Can be used as a dongle-style amplifier via USB-C
Extras: Retro LED indicators, includes FiiO JF11 headphones and a USB-C adapter
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FiiO RR11. The Essence of Radio, Redefined
Rediscover the magic of radio with the FiiO RR11, a portable FM receiver that blends vintage charm with modern technology. Featuring an ultra-slim 13 mm aluminum alloy body and a retro analog tuning wheel, the RR11 delivers a pure and immersive listening experience in a compact, high-quality design.
This unique device combines classic FM tuning with analog BASS+ and 3D sound effects, powered by a dedicated Silicon Labs Si4831 FM chip for crystal-clear reception. With dual antenna support and a built-in headphone amp mode, the RR11 is the perfect companion for audiophiles who value both nostalgic aesthetics and functional versatility.
Key FeaturesSleek ultra-slim design: Premium aluminum body just 13 mm thick, with analog PVR tuning knob.
FM radio chip Si4831: Clear and stable reception across the full FM range (64–108 MHz).
Dual antenna system: Use headphones as an antenna or rely on the built-in PCB antenna for optimal signal.
Analog sound enhancement: DDB chip with BASS+ and 3D modes for richer, more dynamic sound.
300 mAh battery: Over 8.5 hours of playback; supports simultaneous use and charging.
Dongle headphone amp function: Includes USB-C adapter for DAC/amp functionality with smartphones or PCs.
Retro LED indicators: Amber LED shows battery status, stereo reception, and tuning accuracy.
Technical Specifications
Model: FiiO RR11
FM Frequency Range: 64 – 108 MHz
FM Chipset: Silicon Labs Si4831
Sound Effects: BASS+ / 3D via analog DDB chip
Battery: 300 mAh (up to 8.5 hours of continuous use)
Charging: USB Type-C, supports charging while in use
Dimensions: 83.2 × 39.4 × 13 mm
Weight: Ultra-light and portable (official weight not specified)
Connectivity: 3.5 mm headphone output, USB-C DAC/amp mode
What's in the Box
1 × FiiO RR11
1 × FiiO JF11 Earphones
1 × USB-C to USB-C Digital Audio Cable
1 × Warranty Card
1 × Quick Start Guide
1 × Pair of Foam Eartips
FiiO RR11 is more than just a radio—it's a compact audio companion that bridges the past and the future, offering analog charm and digital functionality in a single, beautifully crafted device. Perfect for FM lovers, design enthusiasts, and portable Hi-Fi fans alike.