Ruizu X21 - Page 9

9
FQA
Restart the player if it crashed or doesn’t work.
1. Can’t turn on the player
Please check if the player run out of the battery, connect the player to a
adapter and try again after charging.
2. Heavy noise when playing music
Please make sure the plug is clean or this may cause noise
Please check if the music file is damaged, try to play other musics to
confirm,Damage files may lead to heavy noise or skipping.
3. Can’t hear any sound from the player
Please check if the volume is set to “0”
Please check if the earphone is in poor contact with the player.
Music player specification
If you have any question when using our music player, please don’t
hesitate to contact ruizu2010@126.com
Dimension
45mm×45mm×14mm (L×W×H)
Screen Size
1.5’’ TFT screen
Weight (device only)
61.5g
Function
Music/Record/FM radio
Body material
Metal case
Built-in memory
No memory built-in
Built-in memory
Support TF card up to 64 GB
Battery Capacity
3.7V/ 300mAh
Audio format
MP3 /WAV/APE/WMA/FLAC DSD256 etc.
Recording format
MP3/WAV
Recording distance
3 meters
Playing time
Music(12hours)
Charging time
1.5~2 hours (5V/500mA)
Suitable age
All age