With 2PCS LED light.
When put in the batteries, open the lid it will light up, and it will turn off after close.
Power: 3PCS*AAA batteries, if only use it at night, the power can last for about 30 days.
Also no need battery is OK, it can be connected to the telephone line to light up directly for long time.
New style, mini shape, easy to carry.
Unit Size: 6.5*6.5*3.7 CM