The SLXD35 Portable digital wireless plug-on system delivers transparent, 24-bit digital audio and rock-solid RF performance for videography, ENG and field production, film and location sound applications. Operate up to 32 compatible systems per 44 MHz band, with easy setup and optional rechargeability accessories. The SLXD3 features a patented lock ring mechanism for secure, wobble-free connection of any XLR source, including dynamic and condenser microphones. Includes SLXD3 plug-on wireless transmitter, SLXD5 single-channel portable receiver, zippered carrying pouch, non-conductive cold shoe adapter, leather pouch with integrated belt clip and two pairs of AA alkaline batteries.