Best Buy has the Playmates Disney Frozen II Adventure Storytelling Interactive Figure (Elsa, Anna or Olaf; selected at random) on clearance for $12 with free store/curbside pickup or $5 shipping.

Each battery-powered (2 AAA batteries, not included) 9" figure has multiple play modes for singing, playing SFX and talking. The IR sensor lets the figures talk and sing with each other.