TY - ART TI - K20 karaoke machine CY - Fuzhou City, China PB - Tonor. KW - Library of things, entertainment KW - local KW - Library of things, music KW - Audio equipment KW - AAT N1 - Microphones take 2 AA batteries each; remote takes 2 AAA batteries. Batteries are provided by the library; Karaoke machine is wireless; charge for 6-8 hours, works for 8-12 hours on a charged battery; Wireless microphones have a range of up to 100 feet N2 - TONOR K20 wireless karaoke machine includes a disco ball and colorful LED lights on front. The K20 has an 8" subwoofer, two 3" tweeters and a peak power of up to 250w. Enjoy the fun of karaoke by connecting K20 with Bluetooth devices such as mobile phones and tablets, or connecting to it via USB/TF card/3.5mm auxiliary input ER -