According to the latest logistics rules, lithium batteries must not be more than 30% charged during transport. Therefore, it is normal for batteries to arrive with low charge levels. When lithium batteries are stored for a long time, they should be kept at 50%-80% charge to prevent damage caused by excessive discharge.
A single call button can be bound to up to four audio sources, including those within the Call function.
When using the Reply function, the audio source must include the target to be replied to. For example, if Beltpack A calls Beltpack B, and Beltpack B needs to reply to Beltpack A, Beltpack B’s audio source must include Beltpack A. If Beltpack A’s call target is a group, Beltpack B’s audio source must have the same group membership as Beltpack A. If Beltpack A’s call target is eltpack B, Beltpack B’s audio source must include Beltpack A.
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