This is a package all-in-one deal. If you own a set of KAli Audio monitors capable of receiving/transmitting Bluetooth then this is exactly what you’re looking for. I originally purchased these items separately to see how much latency there was if I transmitted line level output from my Eurorack system to my Kali Audio monitors. They worked perfectly and the latency was surprisingly low for Bluetooth transmission. This package deal comes with absolutely everything you would need to transmit or receive Bluetooth with your Bluetooth capable monitors, be they Kali Audio or by another manufacture. Kit includes A LiveWire universal power supply with several adapter heads to fit any need you may hav, but especially fits the Kali Audio MV-BT Bluetooth transmitter/receiver. All devices are in mint condition. The packaging could look a bit better, but let’s be honest you’re not buying this set to look pretty in the packagin, yeah?