model number ‎T-6112 Karaoke Dimensions LxWxH 41 x 38 x 70 Centimeters Connectivity Technology Usb,Bluetooth Colour Black Compatible Devices Guitar, MP3 Player, Smartphone Batteries ‎1 Lithium Polymer batteries required. (included) Hardware Interface ‎MicroSD, Bluetooth, USB, Multimedia Card Speaker Amplification Type ‎active Percussion Diameter ‎39 Centimetres Built In Rechargeable Battery to play music up to 4 to 5 hours Trolley with Stylish Handel and wheels suitable to carry it anywhere. Perfect for any Outdoor-Indoor program or functions.