The EK Receiver for XSW IEM from Sennheiser is a lightweight in-ear monitoring bodypack that is part of the XS Wireless IEM series, compatible with both Band A and Band B. With XS Wireless IEM, you can easily link additional receivers to one transmitter, connecting more band members to a new level of detail. The lightweight bodypack remains unnoticed once clipped onto clothing or a belt. You can plug in the included IE 4 headphones or upgrade to the IE PRO series with the 0.137 in. (3.5 mm) output. The status LED shows battery and link status at-a-glance, while the front panel allows for individual fine-tuning, from balance to focus modes, EQ to Limiter, so you can design your individual mix.