Microtech e-tab - Device Connectivity and Controls; Battery Charging Warning

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+ Increases Volume
It enables the insertion of a SIM card to connect to the
Internet and make calls. It is possible to make calls
only in the Android version (trafc costs depend on the
operator chosen).
- Decreases Volume
Volume keys
SIM
WARNING! The tablet must be charged at least once
every 3 months to preserve battery life.
It supports up to 128 GB Micro SD
Micro SD slot