FiiO RR13 Portable Stereo Radio
The FiiO RR13 is a pocket-sized portable FM radio designed to bring the classic joy of radio listening into a modern, compact form. With a high-quality stereo speaker system, headphone connectivity, analogue tuning and rechargeable swappable battery, the RR13 is built for anyone who still loves the charm of tuning into real radio.
At the heart of the RR13 is a Silicon Labs Si4831 professional FM radio chip, designed for clear, stable reception and strong station search performance. It supports both the standard 87–108MHz FM band and the 76–90MHz Japan FM band, giving you flexible access to broadcasts across different regions.
Despite its compact size, the RR13 houses an ultra-thin five-magnet stereo speaker system with built-in dual independent amplifiers. Whether listening through the speaker or privately through headphones, it delivers a more engaging radio experience than a basic pocket receiver.
FiiO has also tuned the RR13 with BASS and 3D sound effects, using its custom DDB analogue audio and amplifier chip. This helps add depth, body and immersion to radio broadcasts, giving music, speech and late-night listening a fuller, more enjoyable sound.
The RR13 keeps the tactile pleasure of traditional radio alive with a silky-smooth analogue tuning dial. Its upgraded roller, gear and rack structure makes station tuning more precise, while the mechanical luminous dial gives the radio a retro-inspired look that remains easy to read in low light.
For improved reception, the RR13 includes both a custom internal antenna and a detachable 3.5mm telescopic antenna. When paired with headphones or the external antenna, reception sensitivity is enhanced, helping you capture clearer signals in more challenging environments.
Powered by a rechargeable and swappable 450mAh 10440 lithium battery, the RR13 offers up to 7 hours of headphone listening or around 4 hours through the speaker in radio mode. It also includes a useful sleep timer with 30-minute and 60-minute shutdown options, making it ideal for bedside listening.
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The RR13 can also be used as a compact headphone amplifier when paired with a compatible digital-to-analogue adapter cable, allowing you to enjoy the character of its built-in DDB analogue audio chip with music or internet radio from another source.
Finished with an aluminium alloy front panel and AG glass back cover, the RR13 combines retro radio charm with modern portable design.
Specifications
Dimensions: Approx. 43.4 x 85.6 x 16.4mm
Weight: Approx. 76g
Radio Chip: Silicon Labs Si4831
Analogue Audio Chip: FiiO DDB AS100 custom chip
FM Frequency: FM1 87–108MHz / FM2 76–90MHz
Supported Impedance: 8–100Ω
Battery: 450mAh 10440 lithium battery
Power Input: USB Type-C, 5V / 2A
Charging Time: Approx. 2 hours
Radio Mode
Headphone Output Power: L+R ≥ 390mVrms + 390mVrms
Speaker Output Power: L+R ≥ 760mW + 760mW, 8Ω, 2.45Vrms
THD+N: <0.25%
SNR: ≥45dB, A-weighted
Noise-Limited Sensitivity: ≤15dBuV, S/N=30dB
Battery Life: Headphone output ≥7 hours / speaker output ≥4 hours
Headphone Amp Mode
Headphone Output Power: L+R ≥65mW + 65mW, 16Ω
Headphone Output Power: L+R ≥80mW + 80mW, 32Ω
Speaker Output Power: L+R ≥75mW + 75mW, 8Ω
Output Impedance: <1Ω
THD+N: <0.008%
SNR: ≥100dB, A-weighted
Noise Floor: <10uV, A-weighted
Battery Life: Headphone output ≥18 hours / speaker output ≥4 hours
