Left Right Hearing Aid Mini Sound Amplifier Behind In Ear Light Weight Voice Case

Features: - Instructions Included. - Best Sound Amplifier Adjustable Tone Hearing Aids Aid - This is a Best Sound Amplifier Adjustable Tone Hearing Aids Aid. - Super mini size and light weight, not easily to be seen. Instruction: - Adjust volume to the minimum before wearing. - Choose an earplug of slightly bigger size to avoid whistler - Increase volume gradually to avoid sudden increase in sound - Keep the ear plug clean. - Remove the battery if you don't use it for long time. - If you hear a howling, check the ear (silica gel) is appropriate and whether the size of plug is tight, the appropriate choice of earplugs and plugged, make sure no air leakage. Description: Original box: Yes Max Sound Output: 130±5 dB Max Sound Gain: 55±5 dB Harmonic Wave Distortion: =10% (1000Hz) Frequency Range: 300—4500 Hz Input Noise: =30 dB Working Voltage: dc1.5V Working Current: =3mA Net Weight: 11g Material: Plastic + Rubber Amplifier Size: 55 x 55 x 10mm Item Size: 83 x 82 x 28mm Packing Size: 190 x 82 x 20mm Battery Type: AG13 button cell battery (included) Package Included: 1 x Hearing aid 3 x Earplug (different sizes) 1 x User manual 1 x Box More Details: