Setting The Daylight Daving Time (dst) switch
This unit has a DST switch on the back of the unit to adjust the time for daylight saving 
time and standard time. By default, it is set to Auto and will automatically adjust the time 
at the start and end of daylight saving time. If you are located in an area that does not 
observe daylight saving time or otherwise wish to adjust manually, slide the switch to +1 
to add one hour or to –1 to subtract an hour.
Snooze/Display Dimmer Button
1. To program Snooze, press and hold the Snooze/Display Dimmer Button during normal 
operation (when no alarm is sounding).
2. Press the –or +Buttons to select the desired snooze time (between 01 and 29 minutes).
3. Press and release the Snooze/Display Dimmer Button to confirm Snooze setting. 2 beeps 
will sound. 
4. While the alarm is sounding, press and release the Snooze/Display Dimmer Button to 
temporarily silence the alarm for the set duration (9 minutes is the default). Snooze can be 
used several times during alarm.
5. To adjust the brightness of the display, press and release the Snooze/Display Dimmer 
Button during normal operation (when no alarm is sounding) to cycle through the 
brightness display settings.
Sleep Mode
This unit allows you to sleep to the current sound source for a set time before turning the unit 
o.
1. To set Sleep time, press and release the Sleep Button as needed to cycle to the desired 
sleep duration:120, 90, 60, 30 or 15 minutes or OFF (turns the unit o).
2. Press the or Buttons to adjust the sleep volume on the unit. Note that the sleep volume 
setting is stored separately from other volume settings.
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Using the iBTW38