Speech aids & Voice amplifiers
Speech aids & Voice amplifiers


Speech amplifier


REF: 77350
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  • Enables excellent amplification of a low esophageal voice or of a low voice due to impaired function of the vocal cords
  • Particularly suited whenever a louder conversation volume is desired, e.g. with high levels of background noise
  • A wireless transmitter unit enables a high degree of mobility
  • Very low feedback (loudly whistling noise) due to an innovative suppression mechanism
  • An audio connection cable enables the connection to an external amplifier/mixer
  • Continuous volume control
  • Long operating time, up to 7-8 hours
Technical Data
Transmitter unit  
Power supply 2x 1.5 V type AA or 2x 1.2 V 1000 mAh Ni-MH type AA
Power consumption 120 mA
Transmission frequency 2.4 GHz
Housing dimensions 90 x 60 x 24 mm 
Weight 70 g (without batteries)
Operating time Around 8-20 hours (dependent on battery type)
Receiver unit  
Power supply connector AC 110-240 V 300 mA / 50-60 Hz
Power supply 6x 1.2V 1000mAh Ni-MH type AA
Receiving frequency 2.4 GHz 
Range approx. 10 m
Output power 5 W max. to 4 Ω
Housing dimensions 140 x 80 x 45 mm 
Weight 270 g (without rechargeable batteries)
Operating time Around 6-10 hours (depending on the volume set)
Charging time Around 5-7 hours
Operating temperature -10°C to +50°C
Device class Type B
Protection class II
Marking CE for medical devices
Scope of delivery

Rechargeable batteries, audio-connection cable, wireless transmitter unit with retaining clip, headband microphone, clip-on microphone with retaining clip, hand-microphone

Order information

REF 77350

Instruction for use

Product Datasheet EN

Product Datasheet DE