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Battery type: Li-ion (300 to 380mAh)
Battery life: 8 to 10 hours
Specifications:
Speaker: D40, 4 Ohms and 2W
Working current: 200mA
Frequency response: 100Hz to 20kHz
Power requirement: 5V
Power output: 2W
S/n ratio (amplifier): >92dB
Available colors: red, blue, green and orange
Suitable for iPod, MP4, and CD players
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