The Singsation SPKA10 All-In-One Karaoke System and Wireless Speaker is the most full-featured karaoke microphone available today. Singsation combines light, sound,and voice effects with an 808 precision-tuned speaker to accompany your voice and deliver dynamic, full-range audio wirelessly. It can also be used as a stand-alone wireless speaker to enjoy your music anywhere and can run over 6 hours of play time from the built-in rechargeable battery before you have to plug it in. Singsation is ideal for solo performances, parties, outdoor entertainment and is the perfect gift for children and kids at heart. Lightweight and loaded with FX to make anyones performance fun and amazing. Simply put, it is the best portable karaoke system anywhere.