Hearing Sound Amplifier Hearing Aid Online

hearing sound amplifier hearing aid onlineBehind the Ear or BTE hearing aids are the world's most common hearing aid style.Easy to use and easy to wear.Behind the ear aids (BTE) consist of a case, an ear mold or dome and a connection between them. The case contains the electronics, controls, battery, microphone(s) and often the loudspeaker.        Model: G-20       Brand name: Great Ears       Product materials: ABS       Box size:120*79*33mm       Gross weight:   90g   Product features:             1.Max sound output: 130±5dB             2.Sound gain: ?50dB             3.Total harmonic wave distortion: ?5%             4.Frequency range: 300Hz-4000Hz             5.Input noise: ?40dB             6.Zinc Air battery: DC 1.5V, Current: ?4mA             7.Power off/on switcher             8.Lasting work up to 10 days.             9.Attractive in price and quality  url:http://www.byvisiontech.com