Scienlodic BTE Ear Hearing Aid USB Rechargeable Hearing Aids Sound Amplifier Adjustable Tone Hearing Device for Elderly Moderate Hearing Loss

Product details: Peak OSPL 90 ( dB SPL): 129dB HAF OSPL 90 ( dB SPL): 120dB Peak Gain(dB) : 38±5dB HAF/FOG Gain (dB) : 40dB Frequency range(Hz) : 400-3800Hz Distortion : 500Hz : 5% 800Hz : 3% 1600Hz: 3% Charger current and voltage: INPUT:AC100-240V,50-60Hz/0.15A OUTPUT:5V,1000mA Instructions: 1.Clean the ear canal before use. 2.Charge the hearing aid,turn the botton to N 3.When using it for the first time, please turn the volume to the minimum and then slowly increase it. 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: 1 * hearing aid 1 * storage box, 4 * earmuffs (different sizes) 1 * charging cable 1 * charging head 1*Instructions (Please make sure has read the manual before use )