Auditory Trainers

Details : Children who are hard of hearing from infancy or have gained hearing at a developed age, need to help to learn to speak. They need to know words, their pronunciation, meaning and usage. With patience and understanding, parents and teachers can achieve heart-warming results. Technical Specification:   Amplifier IC-based output stage coupled with 2 transistor low-noise pre-amp-stage. Freq. Range 150 Hertz to 8 Khz. Gain Control Continuously variable dB Attenuator Max. Volume 130 dB SPL. Tone Control 2 Tone per channel:Hi-Low (Fixed) Indicators Separate indicators(VU Meters) Switches For 'Mike' and phono(induction loop system). For battery check. Microphones Electret-built in and external Headphones Dynamic, low impedance, Adjustable head-band and circumaural ear cushion. Supply Voltage 6V; 1.5x4 R20(large size) cells if on battery. 230V; 50Hz. A.C. mains with built in power supply. Current Drain 20 mA, Quiescent. Max. Power 700 mW, per channel