Otto V4000 Series Manual

V4000 SERIES

Noise Attenuating Headsets

The OTTO Noise Attenuation

Headsets for Two-Way Radio

communications feature:

• 24 db Noise Reduction Rating (NRR)

• Flexible boom with

noise-canceling electret mic

• In-line push-to-talk switch (PTT)

• Available in two styles -

Over-the-head style for use in

most applications, and Behind-the-head

style for use with protective headgear

HEADSETS

Table of Contents

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Page 1 V4000 SERIES HEADSETS Noise Attenuating Headsets The OTTO Noise Attenuation Headsets for Two-Way Radio communications feature: • 24 db Noise Reduction Rating (NRR) • Flexible boom with noise-canceling electret mic • In-line push-to-talk switch (PTT) • Available in two styles -...
Page 2 INSTALLATION: 1. Turn the radio off. Note: Installation of the headset while the radio is on may cause the radio to transmit constantly, locking up your radio system. To correct this should it happen, turn off the radio. The radio can then be turned back on, restoring normal operations.
Page 3 V4000 SERIES OPERATION: Turn the radio on and operate it as explained in the operating instructions supplied with the radio. Installing the headset bypasses the radio’s speaker and routes the output to the headset’s speaker. The in-line push-to-talk (PTT) switch disables the radio’s microphone and enables the boom microphone.
Page 4 Information on Disposal of Old Electrical and Electronic Equipment (applicable for EU countries that have adopted separate waste collection systems) Products with the symbol (crossed-out wheeled bin) cannot be disposed as household waste. Old electrical and electronic equipment should be recycled at a facility capable of handling these items and their waste byproducts.