1 Pcs Hearing Aid Sound Voice Amplifier Hear Clear Mini Device Volume Hearing Enhancement for the Elder Yonung Deaf Aids Care
1. Accessories: main unit (1), earplugs (3), English manual
2. Sound gain: 50 ± 5 decibels
3. Maximum output: 130±5 decibels
4.Harmonic distortion: ≤10% (1000 Hz)
5. Equivalent input noise level: ≤ 32 dB
6. Frequency range: 300--4500 Hz
7. Voltage: DC 1.5 v (one A76 button battery)
Super mini size and light weight, not easily to be seen
Weight less than 10 grams
Omnidirectional Rotatable,Adjust to either ear
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.