O'ahu drivers have less than two months to switch to hands-free cell phone technology or face a fine.

Mayor Mufi Hannemann plans to sign a bill today that limits the use of cell phones, digital cameras, video games and other portable electronics while driving. The law still allows drivers to use their phones via hands-free technology, though they won't be able to dial the phone while driving.

Electronics stores say they're stocking up on the hands-free technology for cell phones in anticipation of the law going into effect July 1, and are already seeing brisk sales for cell-phone headsets.

Headsets for cell phones range from less than $10 to more than $35, while Bluetooth earsets — which are wireless — usually cost more than $35 and can run upward of $150.

Gary Hashimoto, manager at RadioShack Kahala Mall, advised customers to do a little research before they buy a headset or Bluetooth earset. More expensive models have noise-canceling technology and longer battery power, he said.

He added, "I would stay away from the really low end of the price spectrum because you probably do get what you pay for."

At Kahala Mall yesterday, several drivers said they liked the new law.

Darryl Hashida, 53, a mortgage broker, said he has a Bluetooth earset for his cell phone. But he never uses it because it's not required.

He added that the law will cut down on "distractions that cause accidents."

Business owner Aime Clemons, 43, agreed, adding it won't take her long to get into the habit of using a headset.

Just like wearing seat belts, she said, "eventually everyone will get used to it."

The new law — which says no one can drive while using a "mobile electronic device" — is partly a response to the September suspension of a city bus driver who was photographed playing a hand-held video game while working his route.

The bill was introduced by City Council members Donovan Dela Cruz and Rod Tam and passed in late April by a 6-1 margin with little opposition. Council Chairman Todd Apo voted against the measure because it will penalize a driver for simply holding a cell phone to dial or identify a caller.

The law will not apply to on-duty emergency responders; drivers who use push-to-talk, two-way radios for work; and amateur radio operators. It also does not apply to those who are dialing 911.

The law also does nothing to address the potential danger of drivers eating, reading, shaving or putting on makeup.

Under the law, "mobile electronic devices" that are banned include cell phones, digital cameras, text messaging devices, personal digital assistants, laptops and hand-held video or video game players.

Drivers who break the law face a $100 fine for a first offense.

A third offense within one year could result in a $500 fine, according to the city prosecutor's office.

The Honolulu Police Department said it will likely warn drivers about the new law for a short period before issuing citations. HPD also said it will launch a public awareness campaign to educate the public before July 1.