Rockville RKI60 Dual UHF 8 Chan Wireless Microphone Karaoke Interface+Mic Mixer, Black. Features: Rockville RKI60 Dual UHF Wireless Microphone w/ Karaoke Interface+Mic Mixer. Connects to any home audio receiver, television iPads, computers, and more. 3.5 mm aux inputs. 14 TS mix output Output passes through the signal of all the mics, as well as any input device. 3.5 mm aux output passes through the signal of all the mics, as well as any input. Front 14 TS mic input. 2 UHF wireless microphones with 8 switchable frequencies. Each mic has a nice heavy feel to it and has a digital display making it easy to switch frequencies. Adjustable Dry/Wet Echo control. Adjustable music input volume. Independent adjustable Mic levels. Mic A: 556.1 558.4 560.7 562.2 564.5 566.8 568.3 570.6. Mic B: 574.1 576.4 578.7 580.2 582.5 584.8 586.3 588.6. Number of channels: 8. Frequency response : 30 Hz – 18kHz 3dB. Operating range: 200 Feet. Power Supply: 3V (2 AA Batt). 100-240V compatible with included micro USB power cable (5 feet). Karaoke Setup Options: Connect RKI60 to your TV: Connect the included optical cable from your TV to the RKI60 You can also use the included RCA 3.5 mm cable and go from the RCA output of your TV to the 3.5 mm aux input of the RKI60. Home theater integration: Connect the included 3.5 mm to RCA cable from the RCA output of your home theater system or powered speaker to the 3.5 mm input of the RKI60. You can use you tube to play your favorite karaoke songs. ? With all setups you can adjust the mic volume, and echo effects to get the best sound.