ASSEMBLY
Let’s get it together.
PowerTrack™ Headband 
Wireless A2 Sound Engines™ 
Single button cable with microphone 
USB charge cable 
Carrying case
INSTRUCTIONS
The sound engines have slots in them. Insert the  
ends of the PowerTrack™ headband into these  
slots and slide them up a bit. Make sure to match  
the L (left) and R (right) markings on the sound 
engines with the corresponding L and R on the  
PowerTrack™ headband. Settle the sound engines 
over your ears and adjust to a comfortable position.  
For optimum sound, make sure the L and R sound 
engines are over the corresponding ear. 
Sound Engine Slot
Sound Engine
PowerTrack™ headband