AGPtek MF1B Mode D'emploi page 9

output
SNR
Lack fidelity
Frequency response
Battery capacity
Charging time
Playing time
Working Temperature 5°C (41°F) to 35°C (95°F)
Operating System
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85dB
<±0.05
20Hz-20KHz
3.7V/190mAh rechargeable Li- polymer
battery
2hours（5V/500mA ）
18-20 hours continuous music playing at
medium
fully-charged
Windows 98/XP/SE/ME/2K, MAC OS 10,
Linux 2.4.2 XP/VISTA\WIN7 USB 2.0 port
7
volume by earphone after