E27 sound-activated light bulb， plug and play.
Built-in light control and sound-activated sensor (sound sensitivity: > 52dB): The light bulb will automatically be locked in daytime to save energy， while at night it will turn on when sound is detected and turn off after a period of time(delay time: 40 - 60 seconds).
Suitable for the bedroom， closet， cabinet， corridor， workshop， basement， garage， stairwell， etc.