Mini hearing aid, invisible hearing aid, hearing aids (Small size ,High Quality ) 1.Mini hearing aid, invisible hearing aid 2.Cheap price ,high quality hearing aids 3.sound gained up to 30dB 4.AG3 cell hearing aid: Details: 100% competitive price Max sound gain up to 30Db Mini hearing aid design Main unit size 20*19*15mm ,NW:3G Invisible and comfortable Adjustable volume control Small size ,great power ,easy operating Sound and clear voice High sensitive Include batteries and extra ear tips One year warranty Quantity :- One box which contains one price.