B 13 Adjustable Ear Hearing Aid Behind Sound Voice Amplifier Hear Assistance

Features : 1. Low noise, low distortion. 2. Power supply : 2 X AG13 / LR44 batteries(included) 3. Behind the ear design, easy to use and carry. 4. Fit for right and left ears. Description : Item type : Ear hearing aid Model : B-13 Maximum sound output : 130 - 5dB Sound gain : >= 50dB Total harmonic distortion : <= 5 procent Frequency range : 300Hz 40000Hz Input noise : <= 30 dB Operating voltage : 1.5V Battery : 2 X AG13 / LR44 batteries Current : <= 4mA How to use : 1. Before you use this item, you have to turn the O-N switch to O(off), and turn the sound volume to minimum. 2. Then put this item on you ear, keep it tightly. 3. Next, turn this item on(O-N to N), adjust the volume until you hear clear sound. Package Included : 1 X Ear hearing aid 2 X LR44 battery 2 X Earplug 1 X English user manual Notes : 1. Adjust volume to the minimum before wearing. 2. Choose an earplug of slightly bigger size to avoid whistler. 3. Increase volume gradually to avoid sudden increase in sound. 4. If y Lees meer over de B 13 Adjustable Ear Hearing Aid Behind Sound Voice Amplifier Hear Assistance van huismerk in de productgroep gezondheid en verzorging