Scienlodic Rechargeable Hearing Aids Ear Hearing Aids Sound Amplifier Hearing Aid for DeafElderly

Product details Peak OSPL 90 ( dB SPL): 125dB HAF OSPL 90 ( dB SPL): 115dB Peak Gain(dB) : 35dB HAF/FOG Gain (dB) : 28dB Frequency range(Hz) : 300-5500Hz Distortion : 500Hz : 3.0% 800Hz : 3.0% 1600Hz: 5.0% Charger current and voltage: INPUT:AC100-240V,50-60Hz/0.15A OUTPUT:5V,1000mA Instructions 1.Clean the ear canal before use. 2.When using it for the first time, please turn the volume to the minimum and then slowly increase it. 3.Charge the hearing aid,turn the botton to N 4,Try and select suitable ear dome. Install the ear dome and make sure it fits snugly. 5,Insert the hearing aid into the ear canal,adjust its position in the ear canal until the soft eartip is fully deployed and fill the ear canal. Note 1 If the earbuds cannot fill the ear canal, it may cause feedback or whistler,So repeat step 5 to reduce howling and noise. 2 Turn off the power if you don't use it. 3. Please use the matching charger to charge the product, otherwise it may damage the product. 4. If you need to use a replacement charger, please use a charger suitable for the product. If an inappropriate charger is used to charge the product, it will cause damage to the product. Products include 3 * earmuffs (different sizes) 1 * hearing aid 1 * storage box, 1 * charging head 1 * charging cable 1 * charging base 1*Instructions (Please make sure has read the manual before use )