WIRELESS EXCELLENCE, WHEREVER REQUIRED Transparent 24-bit digital audio Extended 20 Hz to 20 kHz frequency range (microphone dependent) 118 dB dynamic range Digital predictive switching diversity Operating range of 100 m (300 ft.) 44 MHz tuning bandwidth (region dependent) 32 available channels per frequency band (region dependent) Up to 10 compatible systems per 6MHz TV band; 12 systems per 8 MHz band Easy pairing of transmitters and receivers over IR scan and sync Up to 8 hours from 2 AA batteries. Upgrade to the optional Shure SB903 Lithium-ion rechargeable battery to monitor battery charge status in hours and minutes, as well as battery life and health statistics. Choice of instrument cable or lavalier, headworn and instrument microphones Ergonomic and durable plastic construction SLX-D® Digital Wireless delivers transparent, 24-bit digital audio and rock solid RF performance with easy setup and rechargeability options in a suite of versatile wireless system configurations. Featuring industry-leading digital wireless technology and design, the SLXD1 easily syncs with a wireless receiver. A variety of microphone choices guarantees the right solution for a wide range of applications, from day-long presentations to nighttime performances.