Smart Screen, professional karaoke system with lyric display and hidden wireless microphone. Bluetooth or WiFi speaker designed for a brand new karaoke experience. Compact all-in-one karaoke machine with display and two built-in wireless microphones that are ready to use immediately without pairing. Easy-to-use speaker for seniors with a built-in battery for convenient transport anywhere, such as to the garden or church. The 10.1" karaoke screen displays lyrics and is the best choice for a professional karaoke machine for adults. Share unlimited songs from YouTube with friends without occupying phones or iPads. The 180° rotatable touchscreen ensures optimal karaoke lyric display for your friends. Excellent karaoke sound and bass: exclusive technology reduces distortions caused by the resonance of the Bluetooth speaker, enhances the bass, and provides a purer, clearer sound. Professional microphones with KTV tuning function enhance your singing voice. The Shell S1 karaoke machine is compact yet powerful (180 watts) and has a battery life of 8 hours for the karaoke system.