B2 Karaoke Machine Korean Karaoke Singing Machine 1TB HDD System + TMW-100 Wireless Microphone 2P (White) + Keyboard Remote Controller + Song Book(Koreran+Foreign Song List Book) Set

If there is an issue with the unit, it must be sent back to Korea for repairs. However, they do not ship internationally, so there is no way to get it back once it's sent. Customer service is available only in Korean. To update the songs, you need to purchase update certificates, which cost $15–$25 in Korea but are sold for $60–$100 by most U.S. sellers. Updates can only be done using an Android phone or an exFAT USB. If the update process gets stuck, they require you to send the entire machine back to Korea. However, since they only ship domestically, even if they fix the programming error, there is no way to retrieve your machine.