A helmet is particularly well suited for cold-weather use. A skin may be used as template for creating places. The configuration system includes a host computer system capable of executing a stored program. When the infrared emitter receives the remote signal, the infrared emitter produces an infrared signal according to the remote signal and emits the infrared signal to the home appliance to control the home appliance. According to one embodiment, the action taken to prohibit the purchase of the regulated item is automatically implemented at a server system configured to implement electronic commerce transactions between an on-line merchant and the customer. The estimation of one or more velocity components of a detected candidate takes place jointly with the estimation of one or more position components of the candidate.