The 4 sides of the BlackBerry Z10.
On the bottom of the device you can see an opening you can use to remove the back cover. Under the back cover are the removable battery, SIM card and Micro SD slots.
On top is the power/standby button and headphone jack.
On the left side as you face the phone are microHDMI and MicroUSB ports.
On the right side are the volume rockers and, between them, the play/pause/voice command button.