Invisible Hearing Aids with Charging Case-An upgraded version of traditional Assistive Listening Devices, these rechargeable earpieces amplify voices, TV shows and other everyday sounds with crystal-clear sound without whistling or delays. Featuring five-channel digital sound plus intelligent noise reduction technology, and featuring a smart touch screen, these hearing aids adjust volume with a simple tap and operate up to 35 hours on a full charge. Includes cordless charging case and 3 pairs of airtight silicone ear tips for optimal fit and sound. The charging case can be fully charged within 3 hours, and can recycle the earphones four times. Automatic on/off feature turns earpieces on/off in 10 seconds when placed in/out of charging case. Multi-sized ear domes (S/M/L) ensure a snug fit for noise-free sound. Get perfect hearing in any environment.