Noise reduction bluetooth headsets

:noise cancelling bluetooth,adjustable、swivel,metal sliding arm,operating range: 10m(no barriers)，functions：volume control,previous/next song,play/pause,talk/ end call ;:40MM professional spk;:injection housing+metal adjustable tip;:1C pad printing logo(2pcs) ;:NY010（Beken）/5.0(noise cancelling:15-18DB);:250MAH rechargeable battery(ANC+BT:4.5-5H ，BT：9-10H，charging time:1.5H);:PU leather earpad + headbelt cover;:PS02 flight adapter/nickel insert ;:both-ends 3.5MM nickel-plated plug /1.2M   nylon wire ;:0.3Mmirco charging cable;:change to nylon wire prop65 need extra  ;:in gift box pkg,4C printing ,poly bag matt finish,transparent stickers，10PCS/carton    ;