Yes, it's absolutely safe and convenient to store your Wireless PRO units in the Wireless PRO Charging Case. This intelligent case is designed to assess the current charge level of each unit. It ensures that units which are already fully charged, at 100%, will not undergo further charging.
If you put fully charged Wireless PRO units back into the Wireless PRO charging case without use, it's typical to observe the Green LEDs coming on as the Charging Case verifies each unit's charge status. However, these LEDs will go off shortly after once the RX and TX units are confirmed to be fully charged.
For more information about Wireless PRO Charging Case LED indicators, please see our article: What do the Wireless PRO charging case LED indicators mean?
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