The "bussoflash"
is a device that releases
a flash when someone knocks the door.
To awake in
the morning, the deaf people use a shining alarm clock or a clock
with vibrations.
The shining alarm clock is a simple alarm clock that switches on
an intermittent light.
The alarm clock with vibration has a device placed under the pillow
and, when it is the time to wake up, it vibrates.
