Two Display Mode: Always Display and Energy Saving mode. It use Always Display Mode When using Power adapter to supply power. When using Battery to supply power, It defaults Power saving mode.With built-in Button Battery, You wont need to reset the time when switching the power supply.
Energy Saving mode do not display the time. There are 3 ways to activate the display. Voice Control, Gently Shake and Pat activation. The surrounding sounds up to 90 decibels, gently shake or beat the alarm when the alarm activation time display, automatically extinguished after 5 seconds.
Placed on the desktop or Hung On the wall as you like.
Type: Smooth Surface,Matte Surface
Installation: Can be connected with the computer through the USB data lines or the installation AA batteries(Not included)