GEBRAUCHSANLEITUNGINSTRUCTIONS FOR USEINSTRUCTIONS POUR L‘USAGEISTRUZIONI PER L‘USOINSTRUCCIONES PARA EL USOGEBRUIKSAANWIJZING
HDC 451
Page 1: ...GEBRAUCHSANLEITUNG INSTRUCTIONS FOR USE INSTRUCTIONS POUR L USAGE ISTRUZIONI PER L USO INSTRUCCIONES PARA EL USO GEBRUIKSAANWIJZING HDC 451...
Page 2: ...protection is the only remedy With the NoiseGard mobile system Sennheiser have come up with an effective solution These instructions explain its functioning principle and operation Sound level of nois...
Page 3: ...p so high that surrounding noise is completely drowned out The NoiseGard compensation electronics in the headphone requires its own power supply This is provided by the power supply unit which is fixe...
Page 4: ...of the person talking to you is scarcely changed sincethespeechfrequencyispracticallyunaffectedbycompensation Warning or emergency signals remain audible Understanding speech is even improved byNoiseG...
Page 5: ...Operating time approx 80 hrs batteries approx 20 hrs storage batteries Display green LED as battery check Scope of delivery 1 headphone HDC 451 1 adapter to double mono jack plug 3 5 mm 1 adapter to s...
Page 6: ...Sennheiser elektronic KG Telefon 05130 600 0 D 30900 Wedemark Telefax 05130 6312 Printed in Germany Publ 7 94 54526 A02...
