FiiO RR11 Portable FM Radio with USB DAC Mode
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FiiO RR11 Portable FM Radio with USB DAC Mode
Overview
A phone can stream almost any station over the internet, but a dead zone, a dead battery, or just the simple pleasure of turning an actual dial can make a dedicated radio worth having again.
The FiiO RR11 is a pocket-sized FM radio built around a Silicon Labs Si4831 tuner chip and a custom FiiO "DDB" analog amplifier chip, tuned by hand with an analog wheel rather than a digital menu. It covers three FM band ranges (87-108MHz, 76-90MHz, and 64-87MHz), which between them cover standard broadcast, Japan, and school-campus frequency ranges, with a built-in antenna backed up by the headphone cable itself acting as a secondary antenna.
A USB-C port doubles as a digital audio input, so the RR11 can also work as a small USB DAC and headphone amplifier for a phone or computer, adapting automatically to headphones between 8 and 100 ohms. A 300mAh battery runs up to 8.5 hours in radio mode or up to 17.5 hours in amp-only mode, in an aluminum alloy body that weighs about 46 grams.
Simcoe Audio Video Insight
The RR11 ships with FiiO's own JF11 earbuds, which double as the antenna when plugged in — leaving them unplugged or swapping to a cable without enough length can noticeably weaken FM reception in a marginal signal area, since the radio's built-in PCB antenna alone isn't the primary antenna path. The USB-C DAC mode is a nice bonus for anyone who wants a tiny dedicated amp for a phone or laptop when the radio side isn't in use.
More Info
Why the FiiO RR11 Stands Out
Three-Band FM Tuning
Covers 87-108MHz, 76-90MHz, and 64-87MHz, spanning standard broadcast, Japan, and school-campus FM ranges from a single tuner.
Analog Tuning Wheel
A physical tuning wheel gives tactile, manual station selection instead of a digital menu to scroll through.
Dual-Mode Radio and USB DAC
The same USB-C port that charges the RR11 also accepts a digital audio signal, letting it double as a small USB headphone amplifier for a phone or computer.
Up to 17.5 Hours in Amp Mode
Battery life stretches to 17.5 hours when used purely as a headphone amplifier, or 8.5 hours with the FM tuner running.
BASS+3D Sound Effects
Two selectable sound modes add bass boost, or bass boost plus 3D surround, on top of the base tuning.
Buyer's Guide
Who It's For
- The FM Radio Listener: wants a dedicated, pocket-sized radio with real manual tuning rather than a phone app.
- The Minimalist Commuter: wants one small device that covers both FM radio and basic USB headphone amplification.
- The Retro Design Fan: likes FiiO's aluminum, dial-driven Retro Products aesthetic in a genuinely functional everyday-carry radio.
How It Compares
The RR11 is the entry point into FiiO's retro radio lineup, sitting below the RR13, which adds a built-in speaker and a replaceable battery alongside its own FM tuner and headphone amp. The RR11 keeps things simpler and smaller, at 46 grams, without a built-in speaker, making it the more pocketable option for anyone who plans to always listen through headphones.
FiiO RR11 Portable FM Radio with USB DAC Mode Specifications
| General Information | |
|---|---|
| Model | FiiO RR11 |
| Type | Portable FM radio with USB DAC / headphone amplifier mode |
| Tuner Chip | Silicon Labs Si4831 |
| Audio | |
| FM Bands | 87–108MHz, 76–90MHz, 64–87MHz |
| FM Sensitivity | ≤15dBµV (S/N=30dB); SNR ≥45dB (A-weighted); THD+N <0.3% |
| Amplifier Output (3.5mm) | L+R≥30mW+30mW (16Ω) / ≥40mW+40mW (32Ω) |
| Amp Frequency Response | 20Hz–95kHz (<3dB attenuation) |
| Amp SNR / THD+N | ≥100dB SNR; <0.04% THD+N (1kHz/-24dB@32Ω) |
| Output Impedance | <1Ω; adapts to 8–100Ω headphones |
| Sound Effects | BASS+3D (Magic Bass 1: bass boost; Magic Bass 2: bass boost + 3D surround) |
| Connectivity and Power | |
| Ports | USB-C (charging and digital audio input), 3.5mm headphone jack |
| Battery | 300mAh; up to 8.5 hours (radio mode); up to 17.5 hours (amp mode, 32Ω); approximately 2 hours to full charge |
| Physical Specifications | |
| Dimensions | Approximately 83.2 x 39.4 x 13mm |
| Weight | Approximately 46g |
| Materials | Aluminum alloy body and tuning knob |
| Colours Available | Black, Red, Silver, Titanium Gold |
| In the Box | |
| Included Accessories | FiiO RR11, JF11 earbuds, USB charging cable, USB-C to Type-C digital-to-analog cable, quick start guide, warranty card, earbud sponge covers |