Battery Type Digital Noise Reduction Hearing Aid Elderly Sound Amplifier Black Left Ear

1 Small size no burden to wear2 Multi channel detection of different sounds restore reality double noise reduction3 Promise tuning design bid farewell to gear design4 Built in A10 button battery one battery can be used for 60 hours5 Made of silicone high comfort no whistling6 Equipped with earplugs of different sizes to suit all types of ears7 Frequency response range 300HZ 4500HZ8 Saturation sound pressure level MAX less than or equal to 115 39 Equivalent input noise level less than or equal to 29DB 3DB10 Dimensions 1 5 x 1 8 cm11 Weight single 1 2 grams