This karaoke machine supports multiple audio sources, including Bluetooth, MicroSD cards, FM radio, and an auxiliary audio jack. It features a vocal removal function for solo performances. The device includes voice-changing effects such as echo, harmony, pitch adjustment (high/low), and a robotic voice setting. Two microphones are included, along with vocal warm-up exercises. Power options include an AC adapter or six AA batteries (included). Designed for users aged 14 and up, the unit measures 12.05 x 6.30 x 8.19 inches and weighs 4.23 pounds.