--The low frequency is deep, the middle frequency is delicate, and the high frequency penetrates.
--LED display shows the power level, and the power level can be clearly known.
--noise reduction effect, effectively blocking external noise.
--IPX5: waterproof and sweat proof.
--Three different sizes of earplugs are suitable for different sizes of ears.
--soft silicone ear hooks prevent the earplugs from falling off the ears. suitable for driving and sports.