4
Velcro loop
Velcro hook
Adjusting strap
The device comes with a headbelt which adapts to user’s head
circumference automatically through its elastic structure. If the head
circumference is too small and the headset may easily fall down due
to loose headbelt, please use the head buffer. If the head circumfer-
ence is big enough, the back foam cushioningis not necessary.
Headset repair and maintenance
Servicing the E3 headset
The following instructions are used for servicing your E3 headset.
• Keep the headset away from sharp items such as cable tip, in case
the headset lens be scratched.
• During use or storage, avoid direct irradiation from strong sunshine
or other light sources on the lens lest the product be damaged.
• When the headset is in storage, we recommend using protective
film on the lens to prevent accidental scratching.
Cleaning headset lens
• To wipe the lens, always use the lens cloth provided in the package.
• Dip the lens cloth in alcohol or special detergent.
• Wipe in circularity from the center to edge.
• While cleaning the lens, do not scratch the lens or remove other
parts of the headset.
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