Hearing Aid Wifi app converts your phone into well hearing ear over distance upto 50 meters and Distance may change according to quality of your Wifi Routor and Hearing Aid Wifi broadcasts audio from distance device's mic to second mobile phone as smoothly and amplified by using Wifi Technology and TCP protocols and many linux based android mobile phones are produced by internal amplification limiters but Hearing Aid Wifi app removes this amplification limit using Wifi Tcp protocols and you get smooth and amplified voice in your mobile phone.