Hardware features
interface:
1 micro usb port for power supply
1 sim card slot
button: power on/off
power supply: internal 2000mah rechargeable battery
antenna: internal antenna
network type:
4g: fdd-lte b1/b3/b7/b8/b20 (2100/1800/2600/900/800mhz)
tdd-lte b38/b40/b41 (2600/2300/2500mhz)
3g: dc-hspa+/hspa+/hspa/umts b1/b8 (2100/900mhz)