On the front of the phone are the navigation keys, the earpiece, proximity and front-facing camera sensors, and the Samsung logo. Volume buttons are on the left, the power button is on the right, the primary microphone and microUSB port are at the bottom, and a 3.5 mm headphone jack is present at the top. Around the back we see the 5-megapixel primary camera in the center, with an LED flash and loudspeaker grille on each side. Near the bottom is the 4G DUOS logo; the J2 supports 4G only on one SIM, with the second SIM slot only supporting 2G networks.