I like my Otto Noisebarriers. Been using them for several years for hunting and you can hear a leaf hit the ground if you want. They are rechargeable so no batteries to go dead. Other brands' batteries go dead even when not being used. Otto ear buds come with a larger battery to charge the ear plugs. The ear plug charge lasts for about a couple 12hr+ days and the larger battery recharges the ear plugs for several weeks before you need to plug it into 110v to recharge. Larger battery/charger is handy for those tent hunts when 110v isn't available and is also a storage compartment for the ear buds.