SM20 Series
User Manual
5
Be careful when a headset is used.
Avoid long-term exposure to loud sounds to prevent damage to your hearing.
Loud sounds while walking or driving distract your attention and may cause traffic
accidents.
Instructional Icons
Before using this manual, please carefully read and understand the following icons:
Warning – Situations that may cause injury to yourself or others
Caution – Situations that may cause damage to your device or other equipment
Note – Notes, usage tips, or additional information
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