-Powerful hearing aid for severe/moderate/light hearing impaired people,supporting up to 139dB, Wide Frequence 300-4200Hz. -Simple operation design, One-touch on/off. Seven speed volume adjustment.Anti-drop convenience back clip,suitable for daily use. -Super long battery life USB portable charging.Fully charged for 2 hours, use for 70 hours. -High-quality chip, intelligent noise reduction processing,automatically adjust the sound to a comfortable range to protect hearing, and more realistic sound. -Concealed Fine tuning keys.Open the back cover of the hearing aid, and there are three fine tuning joints that can be adjusted with the included gadget. Speaker amplified: Adjustable 7 volumes Types: Battery/ charging For people: Moderate to severe hearing loss Max OSPL90: 136dB±3dB Full-on Gain: 66dB±5dB Size: 75mm*37mm*13mm Maximum sound output: ≤136dB+3dB High frequency average: 132+4 Equivalent input noise level: ≤25+3 Total harmonic distortion: ≤3%+3% Frequency response range: 300-4200Hz Rated current : 1.2mA How to wear： 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 you hear a howling, check the ear (silica gel) is appropriate and whether the size of plug is tight, the appropriate choice of earplugs and plugged, make sure no air leakage. If it still does not work, please check the chat window leave me a message. 5.Keep the ear plug clean. The cause of howling/noise: The internal amplifier and the microphone are close to each other of the hearing aid, and the sound is continuously received and expanded, so it has a certain possibility of produce howling after power-on. At present, small hearing aids and high-power hearing aids on the market can hardly avoid howling, and only full-digital hearing aids can avoid howling. Ways to avoid howling/noise: 1. When the power is high (the amplified sound is large), howling is more likely to occur. Therefore, gradually increasing the volume from low can effectively avoid howling. 2. When the ear canal is completely sealed, there is no howling sound. Therefore, please use hearing aids after cleaning your ear canal, and test the earplugs from large to small to find the most suitable earplugs，Appropriate airtight earplugs are recommended. 3. After the hearing aid enters the ear canal, it is recommended to push the hearing aid with your fingers and hold it for 1-2 seconds, and match the earplugs to the ear canal. Tips for After-sale: 1-We would be appreciate it if you could give us a five-star review if you are satisfied with our products and services. 2-Communication is always more helpful than dispute and negative feedback. Initiate a dispute help nothing but increase the misunderstanding. 3-We are committed to providing excellent customer service and resolving any issues you may have. If you are not completely satisfied with the product, please let us know and we will do our best to address your concerns.

Product specifications