Install external microphone
Install the microphone as picture shows.
charging
The battery pack is not fully charger when finished, and
please charge it before using.
The battery can not reach the normal capacity for the first
time charging after purchasing or storing it more than
two months. However, it will return the normal capacity
after charging and discharging repeatedly 3-5 times.
Charging steps as below
1. Insert the AC adaptor line to the charging hole of desk-top.
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