Specifications

BEHIND the HEAD OVER the HEAD
HARD HAT
SINGLE EAR
Wear with helmet, hardhat, logo cap.
24 dB NRR rated. Connect cord on right or
left side.
CH-20 Mic mute switch (yellow button)
CH-21 PTT switch (red button)
CH-31 Listen only (3.5 mm mono fixed
audio cable)
Very comfortable headband. Rotate mic
boom for left or right side. 24 dB NRR rated.
CH-10 Mic mute switch (yellow button)
CH-11 PTT switch (red button)
CH-30 Listen only (3.5 mm mono fixed
audio cable)
Attaches to side slots. Ear cups can
be rotated to side when not in use.
Dual muff with 24 dB NRR.
CH-12 Mic mute switch (yellow button)
CH-13 PTT switch (red button)
CH-32 Listen only (3.5 mm mono fixed
audio cable)
Secure fit with comfort.
CH-15 Mic mute switch (yellow button)
CH-16 PTT switch (red button)
HD
2 YEAR
WARRANTY
HD
2 YEAR
WARRANTY
VENTED LISTEN ONLY
THROAT MICROPHONE
NOTE ABOUT MICS:
1 ear cup is vented with no speaker to
allow listening to ambient noise.
Connect cord on right or left side.
CH-40 Mic mute switch (yellow button)
CH-41 PTT switch (red button)
Has coiled 3.5 mm mono audio cable.
Dual muff with 24 dB NRR rated
CH-30 Dual overhead
CH-31 Dual behind head
CH-32 Dual hardhat slot
Dual muff, 24dB NRR rated, available in
behind-head, hard hat slot mount or over-
head styles. Throat mic features injection
molded dual mic elements covering 2/3rds of the
neck area with an adjustable cloth retainer strap.
HEADSETS: Our Signature Blue Muff Series
Headsets normally come standard with
non-amplified electret microphones when
used with portable radio, wireless intercom
or telephony devices. Pre-amped electret
mics are provisioned when used with mobile
radios and vehicle intercoms. Dynamic mics
are also available.
cobaltav.com
1.800.264.6021
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