CNET también está disponible en español.

Ir a español

Don't show this again

HolidayBuyer's Guide

Welcome to the labs

The audio anechoic chamber

Can you hear me now?

Eliminating background noise

Antenna checkup

Antenna results

Phone drop testing

The cell phone museum

The iPhone's grandfather

Verizon took CNET on a tour of its device-testing lab in Bedminster, NJ, this week, where it showed off some of the work it does to review smartphones and tablets before approving them for sale to customers, including drop testing, antenna testing and audio testing.

Caption by / Photo by Ben Fox Rubin/CNET

In this testing room, Verizon manager Sherif R. Sherif describes how Verizon reviews smartphones' speakers and microphones. The space is echo-free, also known as anechoic, and the room is built on springs to diminish vibrations from trucks along a nearby highway.

Caption by / Photo by Ben Fox Rubin/CNET

Here's a rubber-eared mannequin in the audio anechoic chamber.

Caption by / Photo by Ben Fox Rubin/CNET

In another testing room, Sherif talks about how Verizon reviews how well a phone can eliminate background noise, using speakers that blast sounds simulating a train station or busy restaurant.

Caption by / Photo by Ben Fox Rubin/CNET

Here a rotating yellow mannequin head is used to test the effectiveness of a phone's antenna.

Caption by / Photo by Ben Fox Rubin/CNET

On a monitor outside the room, testers can see how well the antenna performed, with round and red being good and concave and green being poor.

Caption by / Photo by Ben Fox Rubin/CNET

Verizon's Steve Manetta, who tests hardware reliability, prepares a phone for a drop test. Testers can then review the drops using a slow-motion camera.

Caption by / Photo by Ben Fox Rubin/CNET

Near the testing rooms, Verizon keeps dozens of old cell phones, dating back to the 1980s, in a series of glass cases.

Caption by / Photo by Ben Fox Rubin/CNET

Here are a few of the first consumer cell phones, including a 1989 Motorola model and a 1986 General Electric phone.

Caption by / Photo by Ben Fox Rubin/CNET
Published:
Up Next
Best iPhone X cases
51