Sennheiser XSW IEM SET

Complete starter set for in-ear
monitoring. Includes 
(1) XSW IEM SR transmitter,
(1) XSW IEM EK Receiver,
(1) IE 4 In-Ear Headphones, 
(1) XSW Rack Mount Kit, (1) NT 12-5 CW
power supply with power adapters,
(2) AA batteries,