-Indoor touch panel control 'do not disturb' and 'make up' .

-ABS fire resistant

-Back light touch key(visible in dark, but not dazzle)

-The touch on DB2000SIN2, will effect on DB2000S3

-Once the 'don't disturb' is on, the doorbell doesn't work.

Supply Voltage	100-240V
Power Source	high voltage
Application Scope	Hotel