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Input frequency: 47 - 63 Hz
those who like to sit in the opera or are often in noisy environments will have little joy with a basic device
Audio Service Mood R Li T7
Signia Pure AX CROS
humantechnik a 2465 0 Bauform_IdO Input frequency: 47 - 63Humantechnik LISA Radio Doorbell Transmitter A 2465 0 Humantechnik radio LISA systems are optical aids for hard of hearing and deaf people. Signals such as the doorbell, telephone ringing or smoke detector are converted into optical pulses so that they can be perceived by people with low hearing. Light signaling devices from one system can be combined in any way and easily adapted to your circumstances. For example, you can add a baby transmitter or
