विवरण

• Hearing reduction MaxSound Output: 130±5 dB MaxSound Gain: 55±5 dB Harmonic Wave Distortion:≤10％(1000Hz) FrequencyRange: 300-4500 Hz Input Noise:≤30 dB Battery: AG13 Button batteries (Randomly deliver one battery or with out battery) Working Voltage: dc1 Working Current:≤3mA Color: As the picture shows Item Size: 3 x 2 x 0 x 3cm Package Size: 19 x eight x 2cm Net Weight: 9g Package integrated 1 x JZ-1088A Hearing aid three x Earplug (different sizes) 1 x User handbook 1 x Box ( optionally available ) Note 1 quantity to the minimum before sporting 2 an earplug of slightly bigger size to circumvent whistler three volume steadily to circumvent sudden develop in sound four you hear a howling, examine the ear (silica gel) is appropriate and whether the size of plug is tight, the appropriate selection of earplugs and plugged, make sure no air leakage five the ear plug clear 6 the battery while you do not use it for very long time

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