Ultra-Thin Aluminum Alloy Design Retro Yet Modern

The RR11 features a super-slim body of 13mm thickness with dimensions of just 83.2mmx39.4mmx 13mm, similar to a lighter. The knob is made of aluminum alloy, truly blending retro and modern. This affordable, pocket-sized radio is for those who resonate with sound waves.

Analog PVR Tuning Feel Connected to The Radio

Relive the magic of the good old days with a scroll wheel designed to simulate PVR tuning. Lock onto every radio frequency with just a flick of your fingers. Being able to feel the act of physically tuning to the station you want comes with the tactile feedback that digital tuners simply can't match.

Specialty Radio Chip Clear and Stable Reception

The specialty Silicon Labs Si4831 FM radio chip allows for clearer and more stable reception, and also to receive a wider range of stations. Whether it's the early morning news broadcast or the late night music program, the RR11 captures the pulse of the city's sounds.

Built-In Antenna Worry Less About Reception

The RR11 is not only able to utilize headphones as an antenna but also features a built-in high-performance PCB signal gain antenna-which significantly enhances its radio reception abilities. While the RR11 is compact, its clever antenna ensures signal reception is not compromised.

Ultra-Wide FM Band Coverage Enjoy a Variety of Broadcasts

The RR11 supports FM frequencies between 64-108MHz, allowing it to be capable of receiving FM signals broadcast anywhere in the world as well as FM broadcasts by colleges and universities. Enjoy mainstream music stations, news programs, campus specialty broadcasts, and more - whatever you want to listen to.

• 64-87MHz FM3: School campus frequency band
• 76-90MHz FM2: Japan frequency band 87-108
• MH- EM1: Ctandard fronuoney hand

Specially Designed Circuit Truly HiFi Radio

Thanks to FIlO's nearly 18 years of extensive audio research and development experience, the RR11 is equipped with a carefully designed HiFi-grade circuit for high-quality sound.

BASS+3D Sound Effects Immersive Listening

Within the RR11 is a custom DDB analog sound effect and amplification chip capable of reproducing a classic sound as well as 3D sound effects for even more immersive listening.

Battery/Power Outlet Dual Power Supply Listen Whenever

A 300mAh lithium battery allows the RR11 to continuously run for over 8.5 hours. It can also be used while charging. The dual power supply modes make your experience more flexible. Enjoy music and radio broadcasts anytime, anywhere - whether during commuting, outdoor activities, or when just relaxing.

It's a Radio But it's also an Amp

Included are retro-style earbuds and a digital-to-analog cable. When paired with the analog headphone amplifier adapter cable, the RR11 instantly transforms into a dongle-style headphone amp system. Using it this way not only increases output power but also utilizes the sound effects on the DDB analog sound effect chip to listen to music or tune into online radio stations, allowing for a charming, unique sound.

Clear Indicators Lighting up Every Listening Session

The thoughtfully designed orange-yellow retro lighting effects clearly indicate important information such as whether in stereo, tuning, and battery status. Whether you're listening to the news in the morning or to music before bed, you can easily understand the radio's current status and listen worry-free.

Attractively Colorful Works of Art in your Hand

The RR11, available in titanium gold, black, silver, and red colors, truly combines retro charm with modern style. It is not only a high-quality radio but also an attractive device that adds some color to your daily life.

Specifications:

General Specifications:

• Name/Model: RR11
• Hardware solution: SoC: MS430, FM radio: SI4831, analog sound effect and amp: FIIO DDB AS10custom chip
• Dimensions: About 83.2 x 39.4 x 13 mm
• Frequency Modulation (FM):
  • FM1: 87~108 MHz
  • FM2: 76~90 MHz
  • FM3: 64~87 MHz

• Weight: About 46g
• Volume control: Volume knob
• Adaptive impedance: 8~100Ω
• Status indicator: Stereo indicator, frequency pointer, radio indicator, battery leveindicator
• Antenna: Earphones JF1 work as an antenna

Buttons and Ports:

• Slide switch: FM slide switch*1, Mode slide switch*1, Sound effect slide switch*1
• USB port: Type-C USB (charging port, analog input)
• Headphone output: Standard 3.5mm port
• Knob: Power on/off/Volume knob, FM knob

Power Supply Parameters:

• Power supply: DC 5V / ≥1A
• Charging time: About 2h

Battery Life and Test Conditions:

• FM mode 3.5mm headphone out: ≥8.5h
  • Audio input: FM
  • Load: 32Ω
  • Volume level: 40mV out
  • Play track and format: MP3 44.1kHz / 16bit

• AMP mode 3.5mm headphone out: ≥17.5h
  • Audio input: AMP
  • Load: 32Ω
  • Volume level: 40mV out
  • Play track and format: MP3 44.1kHz / 16bit

Basic Parameters:

• Performance and parameters of FM mode
  • Output amplitude: L+R≥4mV+4mV
  • THD+N: <0.3%
  • Noise-limited sensitivity: ≤15dBuV (S/N=30dB)
  • SNR: ≥45dB (A-weighted)

Performance and parameters of AMP mode (3.5mm out):

• Output power:
  • L+R≥30mW+30mW (16Ω, THD+N<1%)
  • L+R≥40mW+40mW (32Ω, THD+N<1%)
  • L+R≥5mW+5mW (300Ω, THD+N<1%)
• Output impedance: <1Ω
• Crosstalk: ≥65dB
• Output amplitude: 1.1Vrms
• THD+N: <0.04% (1kHz/-24dB@32Ω)
• SNR: ≥100dB (A-weighted)
• Frequency response: 20Hz~95kHz: attenuation<3dB
• Frequency response: 20Hz~20kHz: attenuation<0.1dB
• Noise floor: <10uV (A-weighted)
• Peak output voltage: 3Vpp
• Input sensitivity: 0.9V