4. BATTERY INSTALLATION
1. To remove the cap, twist counterclockwise until it comes off.
2. Insert 2 AA type batteries. Verify the polarity.
3. Close the battery compartment lid by twisting it clockwise until it is secure.
5. INSTRUCTIONS
Before turning on the device, make sure the microphone volume is at the minimum
level. Loud sounds can cause damages in the microphones or ears.
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