A leash to prevent you from losing your mobile phone might not be too practical, but how about a wireless one?

ZOMM, a Tulsa, Oklahoma-based company, is displaying what it describes as the first wireless tether for cellphones at the Consumer Electronics Show (CES) here.

The ZOMM is a Bluetooth device about the size of a poker chip that attaches to a keychain or can be clipped on to a belt.

“It’s the world’s first wireless leash for the mobile phone,” said Zac Penix, the son of the company’s founders Henry and Laurie Penix.

“It tethers to your phone via Bluetooth and it’s going to notify you whenever you walk out of Bluetooth range, around 30 feet (nine metres),” he said.

“It’s going to vibrate, flash a light and an audible alarm will say ‘Hey, go back and get your mobile phone’.” Penix said.

The ZOMM also does call notification. If your phone can’t be immediately located, the device lights up, rings and acts as a speakerphone.

Penix said the ZOMM can also serve as a panic alarm or medical alert. Holding down the single button will automatically dial emergency services.

“Via speakerphone you can talk directly to emergency services without having to find your phone,” he said.

ZOMM, which will be available in the second half of the year at a suggested retail price of $80 , was a winner of a CES 2010 “Best of Innovations” Award.