NOISE REDUCTION HEADPHONE #ANC-J3

Product Features: 1.Built-in noise reduction circuit inverting precision ANC, it can effectively cut off 85% of the background noise. 2.dedicated high-quality noise-style 40mm diameter driver unit, to ensure the highest quality. 3.3.7v lithium ion battery,it was recharged without replacing batteries. 4.two modes of operation, to choose noise reduction state (subject to a battery), the normal state (without battery) ,it was easy to switch. 5.earmuffs imported sponge, soft and