The device contains a transmitter and a receiver , wear the transmitter on child or luggage , and you take with the receiver. The transmitter will alarm you in loud sound when your child, luggage , pet or other valuable things leave you over your pr... - Update: 2007-07-27

Small and exquisite shapes, with a front protective cover. It can be used as torch in daily . When needed ,just open the protective cover then it can shock the intruder by electricity . Ideal defense device for people . www.szwinslim.com - Update: 2007-07-27

An anti-drowsy alarm to raise drivers awareness of momentary lapses caused by sleepy and tiredness. Wear behind the ear, when driver's head nods below a preset angle, it emits a loud alarm signal to alert driver to take correct action, take a bre... - Update: 2007-07-27