"The JK Audio RemoteMix 3.5 is a three-channel field mixer and headphone amplifier. More than just a field mixer, this is a universal communications interface. It features a phone line hybrid and keypad, a PBX handset interface and both wired and wireless cell phone interfaces. These parts were designed to work together, saving setup time in the field. The JK Audio RemoteMix 3.5 features HD Voice technology, allowing 7 kHz Wide Band Speech when used with compatible phones on compatible networks. Radio <>RemoteMix 3.5 is perfect for sports remotes. Use it as a phone line hybrid, calling into your studio talk show hybrid. Use it as a front-end mixer for your POTS, ISDN, IP or smart phone codec. TV <>RemoteMix 3.5 gives you the ultimate phone connectivity with three 1/4"" IFB headphone feeds. Send and receive interview audio and pull IFB out of any business phone system, even your cell phone or notebook. Great Sound <>A soft limiter prevents overdriving the phone line interfaces, while the mixer XLR output is pre-limiter (full range). Convenient 3.5mm send and receive jacks for recording the show or mixing in your MP3 player. Bluetooth Wireless Technology <>Route audio through your cell phone or notebook using Bluetooth Wireless Technology. The Bluetooth interface will connect in hands free mode allowing a two way 3.4 kHz telecom bandwidth connection. The Bluetooth interface can also connect in wireless headph"