The LM Technologies LM959 Bluetooth Vibrating Bracelet alerts you to incoming calls by discreetly vibrating. It also vibrates to warn you if you travel further than 5 meters away from your precious phone. It'll charge in 3 hours, last for 100 on a charge, and costs $48. The company sent me one to test out and I've got to say, it's not as good as having your cell phone vibrate in your pocket. Because it doesn't give you a boner, and I like boners. Just my own though, not the one on the guy standing behind me in line at McDonalds. His makes me nervous.