Abstract: A tennis ball throwing machine includes a processor mounted on the machine. The processor is operatively connected to a first receiver that is adapted to communicate with the processor and to receive instructions regarding the operation of the machine. A remote controller includes a first transmitter for transmitting signals from the remote controller regarding the operation of the machine. The remote controller includes an interface having start/stop control of the machine. The remote controller has two-way communication with the ball machine processor.

Abstract: An elastic vehicle tire with a cavity (11) enclosed by a tread strip (2) supporting the tread (3) and sidewalls (4, 4.1) adjacent to this on both sides shows a foam insert (9) connected to the inside (10) of the tread strip (2). The side walls each carry a bead (5, 5.1) disposed at the free end to fit around the flange (8, 8.1) of the rim (6) of wheel (7). The foam insert (9) partly fills the cavity (11) and serves a dampening function, in particular in a frequency range below 400 Hz.