Walmart offers the Disney Frozen Magical MP3 Microphone
, model no. FR-070, for $6.61
offers it for the same price with orders over $25.) Opt for in-store pickup
to avoid the $4.97 shipping charge. That's the lowest price we could find by $3. The microphone connects to any MP3 player and features a built-in speaker, line-in connection cord, built-in music, and flashing lights. It requires two AAA batteries (included).