Display operation portion of electronic apparatus includes screen on which information is displayed, and accepts touching operation. The device includes: a fluorescent emission layer having fluorescent pigment molecules that absorb light to emit fluorescence; and a liquid crystal layer capable of switching between a transparent state and a scattering state. The first and second bow limbs are coupled to the rail and arranged on opposing sides of the rail. The transceiver is controlled to operate alternately in either a receive mode and a broadcast mode at substantially the same frequency.