Store security video shows the two men armed with guns wearing gray and maroon sweat suits walking into the RadioShack store on Gratiot.
Roseville police hope this new surveillance video will help find the two suspects at large after casually robbing the store.
The two thieves, described as black men in their 20s and about 6-feet and 5-feet-10 inches tall, then ran off toward a nearby apartment complex.
"They're just taking their time, very lackadaisical about the whole thing," said Roseville Police Chief James Berlin. "It makes you wonder about just how dangerous they can be."
"What's most shocking is just the brazenness of it. They are very relaxed, they are robbing a store at 7 p.m. in the evening when it should be filled with customers."
The video shows one robber locking up while another holds two employees at gunpoint and forces them into the back office.
"Once in the back room they ordered one of the two clerks empty their cash drawer into a garbage bag," Berlin said. "He ordered the other clerk to open the other storage cabinet to empty all the smart phones out of it into the other garbage bag."
After that the two suspects duct taped them.
While leaving the two employees duct taped, the two fled with cash and 35 smart phones. But apparently that wasn't enough.
"As an afterthought, they come back into the store and take the cell phone from one of the clerks," Berlin said.
The two employees were uninjured and able to free themselves and call police within minutes.
Police suspect the two suspects may have had a car waiting for them. Now, investigators say they are waiting for your call to help catch them.
"We believe these two individuals have committed other armed robberies in the area," Berlin said. "And, like I said, their brazenness makes us worry what they might do in the future."