[GREAT PNR PERFORMANCE] Great Passive Noise Reduction total 25 dB NRR Free with a bluetooth adapter now just put on this bluetooth adapter then Simple upgrade P28 as bluetooth headset YOU can enjoy great sound quality music or make a phone call via bluetooth NOTE: This item P28 is a PNR Passive Noise Reduction aviation headset, if you prefer to an ANR aviation headset then you can choose our another item A28.
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