Certain embodiments of the invention may include systems, methods, and apparatus for mounting filters. A closing element that covers the open upper face of the frame can be slid onto the open upper face of the frame. The first group of buffers is for temporarily storing data that is to be delivered to only one destination. This helps in improving performance, preserving battery life and enhancing the overall user experience. In another embodiment of the present invention, there is a dynamic mixer assembly including a dynamic mixer as just described, further attached to a double cartridge or a dispensing appliance. In one embodiment, the invention may include determining a start of reception of radio signals by a radio, generating a radio active signal, transmitting the radio active signal to a coupled computer to affect the radio interference generated by the coupled computer.