A quick release buckle assembly has a male portion that is inserted into a female portion. The invention also relates to the use of at least one oxazolin for preparing an active medicament as a depigmenting agent, and to a depigmenting cosmetic composition comprising at least one oxazolin as a depigmenting active ingredient. In some embodiments, a doorbell includes a system to detect movement of the outer housing of the doorbell. An organic ferroelectric thin layer is disposed on the transparent semiconductor thin layer. According to some aspects, a method is provided comprising the steps of detecting an acoustic signal generated by a strike of a metal plate, and determining a cymbal articulation for the strike of the metal plate based on the detected acoustic signal.