Important safety information
Only replace parts of the product whose replacement is described in this instruction manual. All other parts of the product must be replaced by your Sennheiser partner.
Information on active and passive noise attenuation
The S1 DIGITAL is a headset with digital adaptive noise compensation. As with any complex electronic device, it is possible for the electronics of the headset to fail during operation.
However, the S1 DIGITAL is designed to reduce the effects of such failures and to allow for continued use of NoiseGardTM/digital. NoiseGardTM/digital is active when the headset is switched on and the Power LED H lights up.
Switch the headset off if you experience loud tones, distortion, or loss of com- munications. You can then continue to use the S1 DIGITAL as a passive noise attenuation headset.
Intended use
Intended use of the product includes
•having read and understood this instruction manual, especially the chapter “Important safety information”,
•using the product within the operating conditions and limitations described in this instruction manual.
“Improper use” means using the product other than as described in this instruction manual, or under operating conditions which differ from those described herein.
S1 DIGITAL 3