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Sony nwz-b162f walkman mp3/mp4 usb 2.0 pink 2gb Questions & Answers
How to change battery on my nwz-162f
just plug it in seems like it has this Built-in 170 mAh rechargeable lithium-ion battery so it doesn't need changing just charging unless it won't charge then check youtube and see if there is a video on it
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