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RP21 Digital Voice Recorder User Manual
Recording
Music player
USB 2.0 high-speed data transfer
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Parts and Controls
1. On/Off
Switch on/Off
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2. Earphone/ USB port
3.5mm USB port
3. Indicator light
Indicate the status
4. Next/volume +
Click to go to next song; hold to increase the volume.
5. Previous /volume -
Click to go to last song; hold to decrease the volume.
6. Wire hole
A hole for wire or detachable clip
Power on/off
Slide the power button to ON/OFF to turn on/off the recorder.
Charge the recorder
Use 5V/500mAh charger for charging.
Note: While recording or playing the music, the red light of the recorder will flash quickly and light off
after 10 seconds if the power is low.
Light Indicator
Charging
Red light flashing slowly
Charged
Red light stays on
Low battery
Red light flashing quickly and light off after 10 seconds.
Power on
Red light flashing rapidly for several times.
Playing
Red light flashing slowly and regularly.
Volume Adjustment
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Hold the button </> to decrease/increase the volume while the red light will flash quickly. When
reaching the maximum or minimum volume, the red light stays on.
Previous/Next
When the music is playing, click </> to go to previous/next song or audio file.
Recording
The recorder will start recording when the earphone is unplugged into the recorder after powered on.
The red light will flash quickly for 3 times while switching to recording mode. The red light stays off
when the recorder starts recording.
Play Music or Recordings
After powered on, the recorder will play the music/recording if the earphone is plugged in. While
playing music or recordings, double click the </> button to choose playing song or recording, the red
light will be on for 3 seconds during switching.
If the earphone is pulled out when playing music/recording, the recorder will go into standby mode with
red light stays on, you can start recording or playing music by the following two ways:
1) Click the button </> to start recording. Slide to OFF(Power off) to save the recording. Power on to
play the recording with earphone plugged in.
2) Insert the earphone again and click button </> to resume playing the song/recordings. Double click
the </> button to choose playing song or recording.
Help and Troubleshooting
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Can’t turn the recorder on
Please check whether the battery has been run out, try to connect the recorder with a computer and try
again after charging.
Can’t hear any sound from the recorder
- Please check if the volume is set to 0;
- Please check if the earphone is in poor contact with the recorder.
● Heavy noise when playing music
- Please make sure the plug is clean or this may cause noises;
- Please check if the music file is damaged. Try to play other musics to confirm. Damaged files may lead
to heavy noise or skipping.
Specifications
Size
57*21*10mm
Net weight
25.5g
Flash memory
8GB
Music Format
MP3
MP1
Bite rate: 32kbps~448kbps, sampling rate: 8KHz~48KHz
MP2
Bite rate: 8kbps~384kbps, sampling rate: 8KHz~48KHz
MP3
Bite rate: 8kbps~320kbps, sampling rate: 8KHz~48KHz
WAV
INA-ADPCM
Bite rate: 32kbps~384kbps, sampling rate: 8KHz~48KHz
NS-ADPCM
Bite rate: 32kbps~384kbps, sampling rate: 8KHz~48KHz
PCM
Bite rate:128kbps~1536kbps,sampling rate: 8KHz~48KHz
WMA
Bite rate: 5kbps~384kbps, sampling rate: 8KHz~48KHz
OGG
Bite rate:(Q0~Q10)20kbps~499kbps, sampling rate:8KHz~48KHz.
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APE
Bite rate: Fast/Normal compressed,800kbps~1000kbps,
sampling rate:8KHz~48KHz.
FLAC
Bite rate: L0~L8, 1000kbps~1200kbps, sampling rate: 8KHz~48KHz.
AAC-LC
Bite rate: 8kbps~320kbps, sampling rate: 8KHz~48KHz.
ACELP
Bite rate: 5kbps~64kbps, sampling rate: 8KHz~16KHz.
Battery Capacity
140mAh lithium battery
Playing Time
7 -10 hours
Recording Time
10 hours
Charging time
About 1.5 hours
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