Alphabet Inc.'s Google said on Monday its voice-controlled virtual assistant will show up this year in new tablet-like devices designed by LG Electronics Inc and Sony Corp. as the technology company seeks to challenge Amazon.com Inc.'s dominance in a fledgling market.

Dubbed smart displays by Google, the new devices introduce tablet-like screens to speakers that can obey oral commands to perform tasks like playing music, dimming lights, locking doors and setting alarms. JBL and Lenovo Group Ltd also are developing smart displays, Google said.

Amazon kick-started the market for smart speakers in 2014 with its Echo device, which included the Alexa virtual assistant. The company added a screen for the first time in June, calling the device the Echo Show.