Manufacturer Part Number: 7100123161|Earmuff Type|Band Position|Behind HeadCushioned or Padded Headband|NoCup Color|GreenCup Material|Cushion Material|NRR Behind the Neck|Features|The X4B Utilizes a Newly Designed Spacer, Specially Formulated Foam Liners & Innovative Ear Cushions to Help Improve AttenuationNRR Under the Chin|High Visibility|NoAdjustable Headband|YesHeadband Material|For Use With|Non-Conductive (Yes/No)|NoPush-to-Hear Feature|NoIncludes|Standards|Series|Folding|NRR Rating Over the Head (ea)|27UNSPSC Code|46181902