Wide-Band Analog Tuning Radio

The RR11 is a pocket-sized stereo FM radio designed for daily carry. Its ultra-thin aluminum body, wide-band FM tuning, dual power modes, retro lighting, and specialty audio circuitry make it a compact companion for listening at home, outdoors, or during commutes. It also doubles as a portable headphone amp with the included dongle, giving you more ways to enjoy music.

Ultra-thin aluminum body

The 13mm-thick aluminum housing slips easily into a pocket, keeping the RR11 ready whenever you want to tune in. Its compact dimensions — 3.27in x 1.55in x 0.51in (83.2mm x 39.4mm x 13mm) — give you a light, durable device you can take anywhere.

Analog PVR tuning

The analog tuning wheel lets you scroll across the dial with tactile precision. Each adjustment gives you controlled, hands-on tuning across multiple FM bands. It also brings back the physicality of radio listening, making it easy to lock onto the station you want.

Specialty FM radio chip

The Silicon Labs Si4831 chip is engineered for clean, stable FM reception. It picks up a wide range of stations with less noise, giving you reliable listening whether you're catching morning news, music programs, or community broadcasts.

Ultra-wide FM band coverage

The RR11 supports FM frequencies from 64MHz to 108MHz. This includes campus radio, Japanese FM, and global standard FM broadcasting. You can move between FM3 (64–87MHz), FM2 (76–90MHz), and FM1 (87–108MHz) using the slide switch.

BASS+3D sound effects

The custom DDB analog sound-effect and amplification chip gives you two distinct voicings — a classic balanced tone or an expanded 3D mode for more immersion. These effects apply both to FM listening and when using the RR11 as a headphone amp.

Specially designed circuit

FIIO’s audio engineering experience informs the HiFi-grade circuit inside the RR11. It reduces distortion and preserves signal clarity, whether you’re listening through the radio tuner or the amplifier mode.

Dual FM/AMP modes

You can switch between FM radio mode and a dedicated headphone amp mode. AMP mode offers higher output power and takes advantage of the analog sound-effect chip for music playback from phones or other devices.

Built-in and headphone antenna options

The RR11 uses a built-in PCB signal-gain antenna for everyday listening. Earphones can also function as an extended antenna when needed. Both options make reception more reliable without requiring external accessories.

Retro lighting indicators

The warm, orange-yellow indicator lights show tuning status, battery level, stereo operation, and radio activity. They give you instant clarity while maintaining a classic radio aesthetic.

Battery and power outlet compatibility

A 300mAh internal battery powers FM listening for over 8.5 hours and AMP mode for over 17.5 hours. You can also use the RR11 while charging through its USB-C port, keeping it ready during longer days.

Portable headphone amp capability

With the included Type-C to Type-C analog cable, the RR11 works as a compact dongle-style amplifier. It increases output power and applies its analog sound-effects, giving your headphones a warmer, fuller sound when playing music or accessing online radio streams.

Included retro-style earbuds

The bundled JF11 earbuds complement the radio’s compact profile. They work as both listening devices and an optional FM antenna, giving you a simple all-in-one starter kit.

Product highlights

• Ultra-thin 13mm aluminum body
  
• Analog PVR tuning wheel
  
• Silicon Labs Si4831 FM radio chip
  
• Ultra-wide 64–108MHz FM band coverage
  
• BASS+3D analog sound effects
  
• HiFi-grade FIIO-designed circuit
  
• FM and AMP dual listening modes
  
• Built-in PCB antenna and headphone-antenna support
  
• Retro amber lighting indicators
  
• 300mAh battery with dual power operation
  
• Portable headphone amp functionality
  
• Included retro-style earbuds and dongle
  
• 3.5mm headphone output
  
• USB-C charging and analog input

Specs

• Dimensions: 3.27in x 1.55in x 0.51in (83.2mm x 39.4mm x 13mm)
  
• Weight: 1.62oz (46g)
  
• FM bands: FM1 87–108MHz, FM2 76–90MHz, FM3 64–87MHz
  
• Chipset: MSP430 SoC, SI4831 FM tuner, FIIO DDB AS100 analog chip
  
• Headphone output: 3.5mm
  
• Battery: 300mAh lithium
  
• Battery life (FM mode): ≥8.5h
  
• Battery life (AMP mode): ≥17.5h
  
• Charging: USB-C, DC 5V≈1A
  
• FM mode THD+N: < 0.3%
  
• FM mode SNR: ≥45dB (A-weighted)
  
• AMP mode output power: 30mW+30mW (16Ω), 40mW+40mW (32Ω), 5mW+5mW (300Ω)
  
• AMP mode THD+N: < 0.04% (1kHz/-24dB@32Ω)
  
• AMP mode SNR: ≥100dB (A-weighted)
  
• Output impedance: < 1Ω
  
• Frequency response (AMP mode): 20Hz–95kHz (<3dB), 20Hz–20kHz (<0.1dB)

What’s included

• RR11 portable radio
  
• JF11 earbuds
  
• Type-C to Type-C digital-to-analog cable
  
• Warranty card