Your cellphone is stucked at the bottom of your bag, or perhaps lost in the gaping folds of your jacket pocket. With the boisterous people around you of, you'll never hear it ringing. The bottom line is, when your phone rings, you had better know it, 'cause you never know who's calling.

The vibrating Bluetooth bracelet from LM Technologies is a “revolutionary product that gives the user instant cue of an incoming mobile phone call by vibrating” if move more than 15 feet away from your mobile phone.