Stain-removing oral compositions, such as gum compositions are herein provided. Too week, shallow or too forceful compressions may contribute to suboptimal patient outcome. In one embodiment, transactions are broken down into stages comprising initializing the transaction, sending an opening statement, getting a request, transforming the request, logging in and obtaining authorization, generating a response, transforming the response, sending the response, and terminating the transaction. A system and method according to one particular embodiment of the present invention describes an application for providing telematics services to the customer. This provides absorption over a broad band of frequencies, and it is easy to make the jacket have a sufficiently high thermal capacity, for example, by arranging a flow of liquid through it. The screw-on cover has a drain for residual liquid present in the housing with a round drain opening arranged in the central axis of the housing.