Buy here: https://goo.gl/xZ4nAH
Silicone earplugs, ABS body, high quality made.
ITE amplifier: small in size and invisible on wearing.
Advanced micro processor technology, offers clear sound amplification and reduce noise.
Volume level adjustable with one finger.
Suitable for either right or left ear, perfectly fit ear canal.
Used for daily hearing: watch movie, drama, attend meeting, have class etc.