2pcs K-188 Mini Invisible In Ear Hearing Aid Adjustable Sound Voice Amplifier Audiphone Enhancer

Intended Use:-If you find difficult to hear very well from others, a hearing aid can help you regain your hearing so you can live the life your are used to.-Wearing a hearing aid means rediscovering the pleasure of gathering with friends and family, feeling more confident at work, and enjoying movies, music and TV programs.Features:1. Super mini size hearing aid.2. Attractive and novel invisible design.3. Perfect in craftsmanship.4. Adjustable volume control.5. Battery compartment as On/Off switch. Description:Item Type: Invisible Mini Hearing AidShape: K-188Suitable for: Both left and right earMax Sound Output: 110dB+5dBMax Could Gain: 30dB+5dBHarmonic Wave Distortion: 10%Frequency Range: 300-4000HzInput Noise: ≤40dBBattery: A10Working Current: ≤3mAQuantity: 2 K-188 Invisible Mini Hearing Aid Kit Package Included:2 X Invisible Mini Hearing Aid2 X 3 Eearplug(different size)4 X A10 battery2 X Volume Adjustable Stick2 X English Manual Usage:1. Insert the earplug to the hearing aid, put the hearing aid in your ear and move it up and down to insure it on the right position, adjust the volume to get clear sound2. Open the battery compartment, put into the corresponding battery and close the battery compartment tightly.(open the battery compartment, it will stop working, close the battery compartment completely, it will start to work)3. Please take out the battery or turn off hearing aid when you stop to use the hearing aidNotes:-If you hear the whistling sound, please make sure if you put the earplug tightly, or if you use a appropriate size earplug.Turn off the hearing aid when you charge it.-Be sure the hearing aid is in minimum volume, otherwise the instant sound will make you uncomfortable