What's in the Package:1 pair of Earplugs;4 sets of Bullet-shaped Eartips(S/M/M/L); 3 sets of Bowl-shaped Eartips(S/M/L);1 piece of Connector Cord & Cable Buckle; 1 piece of Plastic Carring Plastic Box & Hanger Rope; 1 piece of Round Keychain Ring. Durable and Reuseable:This noise cancelling earplugs can be rinsed with water countless times because they are waterproof and reusable.After using those earplugs for a while, rinse them out with water and make until they dry naturally, you will get a new noise canceling earplugs.Earplugs come with 1 piece of silicone lanyard,which is perfect for travelling or music & Live Events.This earplugs have more fashionable and modern style. Good Fit and Comfortable:Earplugs is easy to have a simple insertion and twist.The noise reduction earplugs crafted from plastic and soft silicone circle, earplugs provide comfort whenever wear night for working, reading or use for extened periods in noisy environments without any causing discomfort and irritation.The earplugs come with 7 pairs of eartips, earplugs user can choose one suitable for their ear cancal for long-time wearing. Adjustable Two-Mode:Earplugs have Two-Mode for user to adjust the range 15DdB-30dB of noise reduction.the value of noise reduction of open state is 15dB, you can carry out some usual social conversations, parenting or sports cycling, yoga etc.; if you turn on the closed state, the noise reduction value will reach 30dB, to be able to carry out the depth of the concentration, such as reading, work, etc., and the music scene of the external environment is more noisy, the value of noise reduction concert earplugs will reach a better effect. Noise Reduction Earplugs:Earplugs are a great choice to help people protect their hearing from sharp sounds that can lead to a loss of hearing ability.This Earplugs for sleeping is made of two materials--plastic main part and super silicone around outer circle,No matter you are seek quietness in noisy environment, high-quality sleep, peaceful space at music festival or silent on busy city streets, this earplugs noise reduction will get you away from noise of the world and enjoy your live.