Max Sound Output: 130dB ± 5dBMax Sound Gain: 50dB ± 5dBHarmonic Wave Distortion: ?5%Frequency Range: 450~3500 hzEquivalent Input Noise: ?30 dBBattery: AG5 button battery (Included) Working Voltage: D.C.1.5V Working Current: ?4mA Color: As the picture showsItem Size: 4.6 x 3.8 x 0.9cmPackage Size: 9.4 x 7.2 x 3.2cm Net Weight: 8gFeature: Low-frequency noise reduction H fileNote:Keep the ear plug cleanRemove the battery if you don't use it for long time.
Trustpilot
1 day ago
2 months ago
