volume.
Trouble Shot
Not Open
1
．
Check if power switch is ON.
2
．
Check if power is full.
3
．
Check battery.
4
．
Check plug of DC5V.
Not re-charge
1
．
Check power supply plug.
No voice,
Or
become
notice
1
．
Check volume is not 0.
2
．
Check the music file.
3
．
Check if low power
Signal sound
1
．
Low Power
2
．
Song’s problem
Wrong Display 1. Check OSD language.
Can’t
download
1
．
Check USB cable is good.
2
．
Check if connect to PC correctly.
3
．
Check if there is enough space of Memory
Technical specifications
Built-in
recharge
able
Li-ion
battery
Playing time: 3-5hours Note:According to
the volume
LINE-IN
LINE-OU
T
MP3
Maximum input
（
L
）
300mV
＋（
R
）
300mV
output power
2x3W
MP3 bits
8K bps – 320K bps
Signal to Noise Ratio 70dB
Rate of distortion
＜
0.55%
music
format
MP3
Operatin
g
temperat
ure
-5 to 40 degrees
Note
：
this device cannot work as a portable hard disk.