Noise reduction, soft foam listening learning travel earplugs, Noise Reduction Soft Foam Travel Earplug slow sleep. Features: slow rebound anti noise earplug. Color makes the protection visible. Self regulating polyurethane foam can be extended to almost all wearers. Easy to insert and wear. Small size, easy to carry, Automatic digital blood pressure monitor upper arm lcd blood pressure monitors with english voice home bp heart rate pulse meter very suitable for travel. Specifications: Material: polyurethane foam color: Orange Size (approx.): 2.8 * 1cm SNR:35, H-34 M-32 L-31 packaging: 20 pairs / sets of X earplugs.