The BLUE-MIC2-KU lapel microphone is designed to work with
smartphones running either the Android or Apple iOS operating
systems. Prior to normal operation, the phone and lapel microphone
must be paired together using the following process
(note the process for iOS and Android are dierent):
To pair the BLUE-MIC2-KU lapel microphone with a Android phone:
1. When pairing the lapel microphone with an Android phone, rst make sure that the BLUE-MIC2-KU
and all other nearby Bluetooth devices are powered obefore beginning.
2. Press and hold down the Power Button on the BLUE-MIC2-KU for ve seconds, until the LED on the lapel
microphone ashes RED-BLUE-RED-BLUE continuously in sequence. The BLUE-MIC2-KU lapel microphone is
now in pairing mode.
3. Activate the Bluetooth feature on your phone.
4. Activate the “scan/discover new Bluetooth devices” feature on the phone. The exact steps needed
to do this will vary depending on the brand/model of phone you are using.
5. Select the COBALT AV BLUE-MIC2-KU from the list of Bluetooth devices shown on your phone. If the
phone asks for a passcode, enter “0000”. The phone may also prompt you to conrm the connection.
6. After a few seconds, the two devices should synch to one another. Once the BLUE-MIC2-KU lapel
microphone and phone are paired with each other, the status LED on the microphone will revert back
to a single blue ash every few seconds.
7. Once successfully paired, you will be able to make and receive phone calls using the COBALT AV
BLUE-MIC2-KU lapel microphone.
To pair the BLUE-MIC2-KU lapel microphone with an Apple iOS phone:
1. When pairing the lapel microphone with a Apple iOS phone, rst make sure that the BLUE-MIC2-KU
and all other nearby Bluetooth devices are powered obefore beginning.
2. Press and hold down the Power Button on the BLUE-MIC2-KU for ve seconds, until the LED on the
lapel microphone ashes RED-BLUE-RED-BLUE continuously in sequence. The BLUE-MIC2-KU lapel
microphone is now in pairing mode.
3. Activate the Bluetooth feature on your phone.
4. In the phone’s Bluetooth list, two devices will be found, “BTH-300” and “PTT-K.” Both of these Bluetooth
devices must be paired to the phone for the BLUE-MIC2-KU’s audio and push-to-talk features to work.
5. Tap on “BTH-300” to pair the phone with the Bluetooth audio. If the phone asks for a passcode, enter
“0000”. The phone may also prompt you to conrm the connection.
6. After a few seconds, the two devices should synch to one another. Once the BLUE-MIC2-KU lapel
microphone and phone are paired with each other, the status LED on the microphone will revert back
to a single blue ash every few seconds.
7. Tap on “PTT-K” to pair the phone with the push-to-talk connection. The phone may also prompt you
to conrm the connection.
8. Once successfully paired, you will be able to make and receive phone calls using the COBALT AV
BLUE-MIC2-KU lapel microphone.
Reconnecting a Previously Paired Lapel Microphone and Radio Adapter/Cellular Phone
Once the COBALT AV BLUE-MIC2-KU lapel microphone and Bluetooth radio adapter and/or cellular phone
have been successfully paired together, both devices will remember that connection. The lapel
microphone and radio adapter/phone will attempt to reestablish their link whenever they are both
powered on and in within range of each other. Re-establishing this connection can take 10-60 seconds.
8
65
7
PAIRING THE BLUE-MIC2-KU LAPEL MICROPHONE
WITH A CELLULAR PHONE
Phone functions are provided by using the BLUE-MIC2-KU’s Phone Button.
SUPPORT AND WARRANTY
Cobalt Audio Video warrants this product against defects in materials or workmanship for a
period of one year from the date of retail purchase. Cobalt AV will repair or replace a
defective unit, at our option, without charge for parts or labor. The limited warranty is
extended only to the original purchaser and is valid only to consumers in the United States
and Canada. It does not cover damage or failure caused by or attributable to Acts of God,
abuse, misuse, improper or abnormal usage, faulty installation, improper maintenance,
lightning, or other incidences of excessive voltage, or any tampering or repairs by other
than a Cobalt AV authorized repair facility. It does not cover replacement of consumable
parts, transportation costs, or damage in transit.
Repair or replacement under the terms of this warranty does not extend the terms of this
warranty. This warranty can only be modied by an ocer of Cobalt AV, and then only in
writing. Should this product prove defective in workmanship or material, the consumer’s
sole remedies shall be such repair or replacement as provided by the terms of this warranty.
Under no circumstances shall Cobalt AV be liable for any loss or damage, direct, consequen-
tial, or incidental, arising out of the use of or inability to use this product. Some states do not
allow limitations on how long an implied warranty lasts or the exclusions or limitations of
incidental or consequential damages, so the above limitations or exclusions may not apply
to you. This warranty gives you specic legal rights. You may also have other rights, which
may vary, from state to state.
For support or warranty service on your Cobalt AV product, contact us at 1-800-264-6021 or
visit us on the web at www.cobaltav.com.
COPYRIGHT and TRADEMARK INFO
© 2017 Cobalt Audio Video, Lexington KY. All rights reserved.
Cobalt AV and BLUE-MIC2-KU are trademarks owned by Cobalt Audio Video, Lexington KY.
Apple is a trademark of Apple Inc.
iOS is a trademark of Cisco Systems and is used by Apple Inc. under license.
Android is a trademark of Google Inc.
AT&T is a trademark of AT&T Intellectual Property and/or AT&T aliated companies.
All other product or service names are the property of their respective owners.
DISCLAIMER: The Bluetooth wireless link used by Cobalt AV products is an open standard,
unsecured technology. As such, it is not recommended for rst-responder or other mission
critical users.
STATUS LED MESSAGES
The meanings of the various status LED messages shown by the
COBALT AV BLUE-MIC2-KU lapel microphone are shown on the following
SPECIFICATIONS
MESSAGE MEANING
Device is o
Pairing mode
Device turned on
Device turned o
Not paired or link lost
Normal (paired) operation
PTT operation
Low battery
Charging
Charging is nished
LED INDICATION
No indication
Blue-Red-Blue-Red continuous
Two short blue ashes
Three red ashes, then o
One blue ash every 2 seconds
One blue ash every 6 seconds
Continuous red when PTT pressed
One red ash every 6 seconds
Continuous red (when connected to charger)
No indication (when connected to charger)
Dimensions:
Weight:
Bluetooth Version:
Bluetooth Proles:
Bluetooth Power Class:
Sensitivity:
Range (Typical):
Built-in Battery:
Standby Current Draw:
Standby Time:
Operating Time:
Operating Temperature Range:
65 x 30 x 12 mm
22 grams (excluding earphone)
v3.0+EDR, BTLE
HSP, HFP, A2DP, AVRCP, SPP
Class 2
-90 dB
10 meters (30 feet)
3.7V, 190 mAH Lithium-Ion
6 mA
50 hours (max)
10 hours (max)
-15° C to + 50° C
Call State
Incoming call
Incoming call
On a call
No call
Function
Answer call
Reject call
Hang up call
Activate voice dialer
Button Press
Press Phone Button once
Press and hold Phone Button for 5 seconds
Press Phone Button once
Long press Phone Button
Using the Lapel Microphone with AT&T EPTT
Setting up AT&T Enhanced PTT
To get the AT&T EPTT app on your phone and set it up to work
with the BLUE-MIC2-KU’s Lapel Microphone do the following:
1. Install the AT&T EPTT app onto your phone
using the Google Play Store
2. Launch the AT&T EPTT app.
3. Accept the End User License Agreement for the app.
4. When prompted, select "Yes" to activate the app.
5. Log in with your AT&T account.
Once setup, you will be able to use the lapel microphone with the AT&T EPTT app, even if EPTT is
running the background.
• To activate EPTT's push-to-talk feature, press and hold the PTT button on the lapel microphone.
• When EPTT is transmitting a call, audio will be picked up by the BLUE-MIC2-KU’s built-in microphone
unless a wired accessory with a built-in microphone is plugged into the lapel microphone. In that
case, the accessory microphone will be used instead..
• Incoming calls received by EPTT will be heard over the earphone that is plugged into the
BLUE-MIC2-KU's accessory port.
Making and Receiving Phone Calls
You can also use the lapel microphone to make and receive phone calls.
• You can initiate a phone call by using the Phone Dialer app in the phone.
• Phone audio will be routed to the BLUE-MIC2-KU's accessory port and microphone.
• To answer an incoming call, press the phone button on the lapel microphone.
• While on a call, you can press the phone button on the lapel microphone to hang up
the phone and end the call.
