This invention relates to shipping pallets 10 that may be constructed, at least in part, from structural members 100 that are largely fabricated from paper and paper based materials. The devices are characterized by containing special ground cavities allowing cluster formation to take place when a cell suspension is seeded onto the device. Thus, the power amplifier circuits are provided within the same IC chip to enable a size reduction. A TBS changing section changes the TBS based on the BLER. An electrical inverter device is mounted to the first frame and batteries are mounted to the second frame. Transmission-side input terminals and reception-side balanced output terminals to be switched by high-frequency switches are included in the GSM and the DCS systems.