●Waterproof material,Use of hypo-alergenic material with smooth, dirt resistant surface for convenience & hygiene purpose;
●Soft foam recover to its original shape slowly. It helps minimizing the pressure to ear canal & sealing the ears comfortably;
●NRR: 29 dB SNR: 29dB;
●Packing: 500 pairs/dispenser, 4 dispenser/carton = 2,000 pairs.