SENNHEISER EW D1 WIRELESS STATIONARY DIGITAL RECEIVER MODEL EM D1 Prod 556739. New Replacement Lenovo X230 11.1V Battery For: X220/X220I/X220S/X230/X230I. Dell RK906 Black Grey 83 Key Wireless Trackball Compact Mini Slim English US K/B. Genuine Apple Battery for MacBook Air 11 Model A1406 7.3V 35Wh 4680mAh. Tested & Working With 2x Antenna as pictured. This is a used item, so will also have other marks or scuffs from usage. Any Questions Please Ask. Evolution wireless D1 stationary receiver to use with SK D1 bodypack transmitter or SKM D1 handheld transmitter for live stage use. Evolution wireless D1 is a digital sound transmission system that makes no compromises when it comes down to reliability, sound quality or user-friendliness. Ew D1 is the number one for every gig and live event when you need to simply rely on pure brilliance. It can run up to 15 output lines in parallel and independently adjust the sensitivity of every transmission.