VocoPro TABLETOKE Digital Karaoke Mixer with Wireless Mics and Bluetooth Receiver Two Microphones Operate In The License-Free 2.4GHz Band For Reliable Transmission Bluetooth Connects To Smartphones, Tables, Or Laptops To Stream Music Wirelessly Connect Any Music Source With The 1/8" Input Jack With regards to the cancer warnings see: http://www.vocopro.com/prop65/