Invisible Aids Rechargeable Audifonos Hearing Device. Feature Peak Gain(dB): 35dB,Suitable for Mild to Moderate Hearing Loss (Reference Hearing Loss Map) Super Mini Size: Ear Aid Size out of the Ear Only 0.659 * 0.0.4*0.23 Inches,weight Only 1g,which Can Be Well Hidden in Your Ears. Biomimetic Design: Designed for Hearing Impaired,more Fitting Ear Canal.Do Not Feel Pain Even when Worn for a Long Time. Intelligent Chip Sound Amplification: Distinguish Speech Even in Noisy Environments. . Rechargeable: Charging 4-6 Hours Can Last a Whole Day (about 35 Hours)Saves Your Trouble to Buy Button Batteries Frequently.  If the Ear Dome is Not Completely Fill into Ear Canal or Air Leaks at the Ear Dome, Which Will Causes a Annoying Whistle.We Give 3 Different Sizes of Earplugs to Reduce Howling and Noise.  Gift Bundled: We Will Give a Hearing Aid Box to Carry.Every Set Contains Charger, Earbuds and Cleaning Brush Etc.Will Be Great Gifts for Your Friends or Families. Specifications: Product Name: CIC Hearing Aid Charge Head: US Plug/EU Plug Weight: Total 111g Peak OSPL 90 ( DB SPL): 118dB HAF OSPL 90 ( DB SPL): 110dB Peak Gain(dB) : 35dB HAF/FOG Gain (dB) : 30dB Frequency Range(Hz) : 300-4000Hz Distortion :500Hz : 5.0% 800Hz : 3.0% 1600Hz: 3.0% Package Included 1 × Hearing Aid 1 × Storage Box 3 × Earmuffs(different Sizes) 1 × Cleaning Brush 1 × Volume Adjustment Bracket 1 × Charging Adapter 1 × Charging Head 1 × Instructions(Please Make Sure Has Read the Manual Before Using). . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.