The Peltor ProTac Ear Defenders are electronic level-dependent hearing protection. Features include five-volume level steps, a 3.5mm listen only jack, large user-friendly buttons, dual shell design and a stainless steel wired headband. They come in two models; the slimline Hunter 26dB, and the standard Shooter 36dB.Ear Defender FeaturesPeltor ear defendersLevel-dependent microphones3.5mm jackLarge user-friendly buttonsDual shell designStainless steel wire headbandPowered by AA batteriesReplaceable cushions and foam linersPeltor Ref.MPN: PEPTH, PEPTSColour: Hunter, ShooterSizes: One SizePM Ref: 977375