Headbands dig in. Hard hats won't sit right over them. The Optime II N-band solves both — it sits on top of the head like a cap, no pressure behind the ears, and it plays nice under a hi-vis or a hard hat. Green shells, case of ten, ready for the next shift. Grab a box and stop the 'can you hear me?' conversations
| brand | 3M |
| range | Peltor Optime II |
| model | H520B |
| style | N-Band |
| colour | Green |
| pack_size | Case of 10 |
| category | Education & Craft |
| subcategory | Health & Safety |