Features:

1. Play high music from SD/MMC card
2. Rechargeable battery build inside
3. Blue backlight with track information
4. Repeated function
5. EQ with 5 sound functions can be choosable
6. Folding headphone
7. Wired headphone
8. Hi-Fi sound
9. Play more than 5 hours

Techno-parameter:

1. Power voltage: 3.7V(400mAH Li-ion rechargeable battery)
2. Static state current: 40uA.
3. Output current: 100mA.
4. Working time full of power: 5 Hours.
5. Charging voltage for 5V supply by PC USB
6. Max charging power: 200mA.
7. Use earphone also can listen to the music come from headphone with MMC\SD card.
8. USB input port charge power can read and write the files of MMC/SD card.
9. USB portUSB 1.1
10. Support format: MPEG 1, Layer 3
11. Sampling rate: (Bit Rate) 32/44.1/48KHz (8Kbps~320Kbps)
12. SNR: About 70dB (1 kHz)
13. Sensitivity: 108+/- 3 dB at 1 kHz S. P. L
14. Frequency response: 20Hz - 20 kHz
15. Channel separate rate: 30 dB at 1 kHz S. P. L
16. Speaker resistance: 32ohm +/- 10%
17. Speaker size: 40mm
18. Output power: 10mW