Detailed Product Description Explanation of product: The Easysing MK8122 is a newly smart portable karaoke microphone developed by new technologies and consists of 1 acceptor and 2 wireless microphones. It can store a thousand songs in a small piece of equipment. It has record / reply / random functions and supports downloading the image background and music from the PC via the USB connection. It will bring innovation to the singing culture. Features 1) Easy sing: MK8122 has superior video and audio quality 2) Favorite image inserted as background available 3) Provides high quality moving picture as the background of songs 4) Adds new songs through song chip (optional) and saves your favorite songs as well as new songs at anytime 5) Records one's singing and plays immediately 6) MP3 download and play function: download from your PC via built-in USB port or Internet and play 7) Duet microphone function: auxiliary microphone is connected to the main microphone to sing together (optional) 8) Earphone / headphone use available, when singing alone 9) Adds, deletes songs possible using USB port 10) Selects songs on the screen 11) Can adjust the key tempo, echo and more 12) Mode functions: a) Karaoke mode: users can sing a song when music plays b) Record play mode: users can hear recorded song c) MP3 mode: users can play MP3 music d) User mode: users can choose graphic files and check the remained memory e) USB mode: users can download files you need through personal PC or internet f) Special functions: i) Continuous play: plays automatically in numerous order ii) Random play: plays randomly for playing games iii) Arena: gives you a real time score after your sing iv) VS: provides songs competition, comparing with others g) A human user operation faceplate Specifications: 1) Voice frequency range: 200Hz ~ 11KHz 2) TV channel: video channel 3) Voltage: 5.5V 4) Wattage: <3W 5) Dots: 352 x 240 6) Image color: 256 7) Operation temperature: 0~ 50癈