| CSA Class A |
| Earcup pivot points tilt for optimum comfort and efficiency |
| It features an electrically insulated wire headband often referred to as "dielectric" |
| Noise Reduction Rating (NRR)b 24 dB |
| NOTE: The X-Series (over-the-head) headband version is electrically insulated - sometimes referred to as "dielectric" |
| The metal components of the headband have been covered by non-conductive material for use in a low voltage electrical hazard (less than 440 V ac) |
| The wire headband offers consistent pressure over prolonged wearing periods |
| The X2A is a lightweight lower-profile earmuff designed for protection against low-to-moderate level industrial noise and other loud sounds |
| The X-Series earmuffs are 3M's latest advancement in hearing conservation |