A juvenile vehicle seat includes a seat base and a backrest. The mounting template has a center hole used as a guide to align the center of the clock in a preselected position on the mounting surface. The first protection unit 14 prevents connection to the bath lift when the voltage of the rechargeable unit falls below a lower predetermined limit. At least one correction value is stored in a memory unit for each CMOS video sensor point to be compensated, such that output signals corrected by FPN will be obtained. Feedback may be requested from the contacts concerning the one or more VMocks, who may then generate the requested feedback. It is a novel way for users to collaborate on the fly, and without having to own or download any programs that then stay resident on the user’s computer.