The hearing aid come with rechargeable function, no need to change battery

•The hearing aid combines a cosmetically appealing look with the smooth sound an internal speaker

•This hearing aid channel digital sound processing allows the user to control volume and programs

•Filter out unwanted noise caused by airflow or wind Deliver direct, powerful, and smooth sound right into your ear 

•Moisture resistant provides durability to most forms of moisture and wear

•Separate wire and headphone, more convenient and safety 

•The In the Ear Hearing Aids also provide improved technology for reduced electromagnetic interference

•Hearing Aid Devices are suitable for severe hearing loss people