GREADIO Portable Radio Speaker User Manual

Greadio GR-908 User Manual

Portable FM/MP3 Radio SpeakerR908


  • FM Radio
  • USB Port charging
  • Bluetooth Speaker
  • TF Card Player
  • AUX player
  • Specifications
  • Safety Instructions
  • Warranty

FM Radio

  • Turn the power switch to the “FM”, the Frequency scale will turn to orange.
  • Rotate the tuning knob to select a channel, get close to window to get better signal.

Bluetooth Speaker

  • Turn the power switch to “BT”
  • “dingdong” will be heard after 3s. At the same time, the Bluetooth indicator turn to blue.
  • Turn on the Bluetooth device such as a mobile phone to find the name of “FY-R908″ and click it to connect.
  • When is connected, there will be a beep and the frequency scale will stay blue, open the music player to listen to music.
  • After disconnected the Bluetooth, there will be a beep sound.

TF Card Player

  • Insert TF card to slot.
  • Turn the band switch to “BT”.
  • Long press the button “M”, then you will hear “SD Mode” and it will automatically play music.

Note: This products have memorize playback function.

AUX Player

  • Turn the power switch to “AUX”
  • “AUX Mode”will be heard after 3s
  • Insert the supplied AUX cable to connect your phone/MP3/iPod/PC etc.

USB Port Charging

  • To charge the radio, insert the supplied USB cable to the power source
  • The charging indicator will stay red. After fully charged, the red light will turn off.
  • It takes 3 hours for the internal 800 mAh Li-on battery to be fully charged.
  • When completely charged, the battery will deliver 6 hours of radio play (depending on the volume) or 5 hours of Bluetooth speaker time.

Product Features

  • This product use 800 mAh, rechargeable, built-in polymer lithium battery. It has passed the safety test and certification, and the capacity is larger than most of the same size of the Bluetooth speaker, so there is a longer working time.
  • This product use a high-end professional radio chip, using a special antenna and matching circuit, coupled with other professional-grade circuits, making its receiving sensitivity better than other performance.


  • It use a special elector-acoustic design, which is tuned by a professional tuner, making this radio very good sound quality.
  • Its small and elegant appearance is loved by collectors and players

Note: To ensure the sound quality of Bluetooth, the best reception distance is within 10 meters.

Safety Instructions

  1. Avoid violent shocks or falling.
  2. Keep out of direct sunlight, high temperature and humidity.
  3. Cassettes, magnetic cards, and other magnetic recording software should be placed away from the body speakers to prevent the recorded content from being erased or noise on the cassette.
  4. If there is any debris falling into the machine, please check with qualified maintenance personnel before using.
  5. When cleaning the case, wipe it with a soft cloth dampened with detergent solution, Don’t use strong solvents such as alcohol or thinner to clean.
  6. Keep listening at the right volume so you can pay attention to your surroundings at the same time to ensure safety.
  7. In the dry and cold season, chemical fiber, silk and other items that are prone to static electricity will products has corresponding protective measures, but please try to avoid rubbing with the above items.


  • This radio has full 12 months warranty against manufacturing defects.
  • The warranty period begins from the date of purchase.

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