Descriptions

• Hearing aid 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 image shows Item Size: three x 2 x zero x 3cm Package Size: 19 x 8 x 2cm Net Weight: 9g Package integrated 1 x JZ-1088A Hearing relief 3 x Earplug (different sizes) 1 x User guide 1 x Box ( non-compulsory ) Note 1 quantity to the minimum earlier than wearing 2 an earplug of slightly bigger size to avoid whistler 3 quantity steadily to bypass sudden expand in sound four you pay attention a howling, examine the ear (silica gel) is suitable and whether or not the dimensions of plug is tight, the appropriate selection of earplugs and plugged, make sure no air leakage five the ear plug clean 6 the battery when you don&;t use it for long time

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