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2.  SAFETY
2.1.  IMPORTANT
Please read, understand, and follow all safety information in these instructions, and in the User Instructions for your relevant 
TMAS components: SCU-300, RCU-300, ComTac™ VII, and/or TEP-300, prior to use. Retain these instructions for future 
reference. For additional information or any questions, contact 3M Technical Services. Refer to contact information listed on the 
last page of this manual. 
3.  OVERVIEW
3.1.  TEP-300
 
A
B
R
I
C
D
L
S
NM
F
G
H
Q
E
O
J K
P
A   Battery lid
B Latch
C  Indication LED
D  Test/Status button
E   Charging receptacle
F  Charging case
G Retention cord storage posts
H  Battery compartment
I  AA battery
J  Power/Control Button
K  Eartip Stem
L  Windscreen/Microphone Cover
M  Eartip - Skull screws tips/Torque Communication tips
N Eartip-Ultrattips
O  Eartip - CCC tip
P  Earpiece charging contacts
Q  USB-C charging port
R AAA battery adapter
S Earpiece
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