Zte Blade A5 2020-T - Battery Caution; Proper Use

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Talk time
Up to 8 hours (subject to network)
Connectivity
Bluetooth 4.2, Wi-Fi 802.11b/g/n, 3.5mm jack
NAHJ, Micro USB
SIM Card
Nano SIM, 4FF format.
Battery Caution
Do not attempt to open the case or remove the battery. The
battery is not end user replaceable. Perform a reset by
holding the power key for 10 seconds.
Proper Use
Do not expose your device to extreme temperatures lower
than - 10 °C and higher than + 45 °C.