4 Mode Durable Noise Reduction Digital Hearing Aid Ear Aids Mni for the elderly Wireless Portable Sound Amplifiers Long Time Use

600 hours long life. Use one meter for 2.5 months. Drop-resistant and durable. Medical silicone soft touch. Rotate right and left to adapt to the left and right ears. Intelligent noise reduction, removing noise. Volume and mode memory function, 3 seconds automatic memory, without frequent debugging. One-touch switching mode, 4 kinds of hearing mode switching. Battery type:A675 or AG13. This is easy to buy at a local store.