247-H10AHV Features: -Twin cup design minimizes resonance, thus achieving maximum high and low frequency attenuation.-Pivoting earcups for optimum fit.-Padded steel headband with four point suspension for extra comfort. Specifications: -Noise Reduction Rate (NRR): 30 dB.-Color: Hi-Viz Green.-Type: Over-The-Head.-Quantity: 10 per case. Additional Info: PELTOR OPTIME 105 H10 HI-VIZ HP NRR 30 DB Cost is for a min. order of 1/EA UNSPSC: 46181902 Testing Approvals: CSA Class AL