high quality Invisible & Incredibly Comfortable - 30% smaller than most other CIC devices on Amazon, you will feel no burden at all wearing this A49. The mini design provides an enhanced fit. They don't slip out and are designed to fit the natural curve of the ear canal. The package comes with different size earbuds (small, medium and large), so you can easily find your perfect fit.Rechargeable Hearing Aids The compact charging box provides 80 hrs backup power for every 2 hours charging. The portable charging case can recharge the hearing aids for 3 times without power source. You can use the pair for 1 week after for 2 hours of fully charged.Easy Operation - This hearing aid has 4 modes and 6 volume levels that can be easily adjusted to suit different environments. Quickly press the button to adjust the volume level, long press the button for 3 seconds for mode adjustment.Ideal Gift for Seniors - The longer hearing loss goes untreated, the brains ability to understand and decode language declines. This hearing aid is the best choice for mild to moderate hearing loss. Giving hearing aids as a gift to seniors can help them get back to their daily lives. They can hear loving words and laughter from everyone and eliminate feelings of isolation.Real Hearing Aids - These are real hearing aids, adapted with 16 channel digital sound processing chip (same as big brands which cost thousands) that provides a 35 dB sound gain (higher than most other hearing aids). Decent choice as a gift for love ones.Superior Sound - Much better than those analog devices selling online (90% online hearing devices are analog). The sound is superior with great noise cancellation,helping you to better focus on the conversation and immerse yourself in a clear and enjoyable hearing environment.About the hearing aids of A49 - This is the latest version of the hearing aid. We upgraded the processor, chip and battery to make it last longer, and the noise reduction function has also been greatly improved.Professional 4 Modes - There are 4 modes. Normal Mode, Restaurant Mode, Outdoor Mode, Music Mode. Thus you can easily follow up conversations with friends and families, hearing TV dialog, take part in noisy restaurant or concerts, etc - Only professional hearing aids can provide these hearing modes.Memory Function - The devices not only have auto On/Off function, but also have memory function, will keep retain the volume and mode so you don't need to adjust the volume and mode every time after take it out of the charging case, making it perfect for seniors.