Shure SLXD4D+E S50 - Digital 2-channel UHF wireless receiver; transmission range: 823 - 832 und 863 - 865 MHz; Audio transmission: 24-bit/48 kHz; dynamic range: >118 dB; switching bandwidth: 138 MHz; 14 compatible channels per 8 MHz band, 11 compatible channels per 6 MHz band; automated setup and pairing; ShowLink® Ease enables remote control and management of transmission parameters for paired devices; integrated Shure Digital Feedback Reducer software; XLR/jack output; AES-256 encryption; Weight: 930 g; Includes 19" mounting accessories, power supply, 1/4 lambda antennas