Price:
US$19.89

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Overview and Specifications:

Power input: Micro USB 
Battery capacity: 900mAH (Max) 
Rated voltage: 5V 
Rated power: 3W 
The rated impedance: 4 Ω 
Charging time: 2Hour 
Working hours: 9-10hour 
Weight: 80g 
Product size: 60*50*35mm Effective distance: 8 m

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