Are you ready to rock n; Troll; ; This Trolls karaoke with real working microphone connects with your smartphone or MP3 player, enabling you to sing along to your favourite MP3 songs and create your very own crazy forest party at home; With built-in music, storage compartment for your MP3 device and built-in speaker, theres just one more thing you need to add - your amazing voice; Sing along to built-in tunes. Fun phrases from the movie. Includes real, working microphone. Kids; boombox connects to any mp3 player, and storage compartment in back for your mp3 player. Led lighting flashes with the music to brighten up the party. Size H27.8, W33.3, D8.9cm. Batteries required: 3 x AA (included) plus . For ages 3 years and over. WARNING(S): Only for domestic use.