Graphite 1 Pair Bluetooth Digital Ear Back Machine Ric Sound Amplifier Deaf Young People

SF101isaprogrammableBTE hearing aid. Based on DSP systems,10channels WDRC and digital signal processing,SF101can provide your hearing clear and comfortable. No matter you are in quite, noisy, outdoorenvironment, it will keep youhearingclearly.It uses a312Abattery.The machine and the mobile phone are connected via Bluetooth, which can realize mode switching, volume adjustment and Equalizer band adjustment.ENVIRONMENT & CONDITIONSWorking conditionsTemperature: 0~ +40 Humidity: 30% ~ 80% Voltage: DC 3.0-4.2VStorage conditionsTemperature: -20~ +50 Humidity: 30% ~ 80%