hearing aids

Product Introduction:

hearing aids JH-900A is provided by JingHao Enterprise Shares Co., Ltd,a major Plastics & Products supplier in Chemicals & Related Products wholesale industry in China.You can check out the specification of hearing aids JH-900A below or get any optional result clicking into the following keywords hearing aids , sound amplifier , deaf-aid , hearing amplifier , ite hearing aid and you can check the authentications and testimonials of hearing aids JH-900A.

Description:
hearing aids
jh-900a
working voltage: 1. 4v
botton battery
enlarge voice: 40-100db
frequency: 200-3300hz