The Magic Sing Adaptor provides continuous power to your magic sing karaoke system. It is manufactured with the highest quality standards for long-lasting and durable usage. And because it consumes a very low amount of electricity, you will have a reliable power for an all day singing marathon without worrying about your electric bill. The Magic Sing Adaptor is universal and automates voltage regulation with 110V to 220V AC outlet. It is also compatible to all types of magic sing microphone models that serves as a charger, providing 3 to 5 hours of battery life to the Magic Karaoke System.