[ IMPROVE HEARING] This pocket hearing aid can amplifies the human voice effectively while reducing the background noise. You can hear the voices of your loved ones and friends clearly, including the sound of the TV and the phone, aslo gives you confidence to join the face-to-face conversation and helps you handle various listening situations in daily life. [Noise Reduction Hearing Aids for seniors] The hearing amplifier for adults has wide frequency ranges can be amplified or reduced based one your needs, provide comfortable bass, clear treble, and protect hearing. NH to adjust the backgroud bass, NL can adjust the voice clarity, MPO limited the max output to aviod harmness to the ears. [7 Levels Volume Control & 2 Modes] 1-7 level of volume gain for different levels of hearing loss, gain from 42 to 66db, and the maximum output is 136db, fit for mild to profound hearing loss. These rechargeable hearing aids for seniors have 2 modes: normal mode and quiet mode, and may need various requirements for different level hearing loss. [Fast Charging and Long Working hours] This rechargeable hearing amplifier charged for 2 hours, and work for 50 hours. When the hearing aids are fully charged, it will automatically stop charging, which is very kind to elderly people. Note: The actual working time depends on the level of volume. [Gift for seniors and family ]The earphones of the hearing aid do not need to distinguish between the left and right ears, easy to wear. It's the perfect gift for seniors or adults who have hearing loss. Colour:white blue Material:plastic Package Contents: 1 x Hearing Aids 1 x Headphone(Random style, don't accept the specified) 1 x USB Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.