Shure MX890-J3 Wireless Desktop Base w/ Internal Transmitter - Band J3 (572-596 MHz)

The Shure MX890-J3 Wireless Desktop Base is designed to provide cable-free installation of the Shure MX405 and MX410 Gooseneck Microphones. The base features a built-in wireless transmitter that is compatible with Shure's SLX4 and SLX4L series wireless microphone receivers and infrared (IR) sync remotely synchronizes channel and frequency. The internal wireless transmitter eliminates the need to run cable and drill holes. A programmable Mute switch includes push-to-talk and push-to-mute modes. Bi-color LED provides status information and the MX890 is conveniently powered on two AA alkaline batteries. Features: Sleek, low profile design Frequency agile, microprocessor controlled transmitter IR link to SLX receiver for automatic frequency synchronization Programmable frequency Group/Channel display Programmable mute function Operates on two AA batteries Compatible with all Shure SLX Wireless systems Supports Shure MX405, MX410 and MX415 Microflex Modular Gooseneck Microphones CommShield technology for protection from RF interference Specifications: Transmitter: Operating Range: 30 m (100 ft.) Transmitter: Frequency Stability: +/-10 ppm Transmitter: Maximum Frequency Deviation: 45 kHz Transmitter: Oscillator Type: Phase-locked loop (PLL) controlled synthesizer Transmitter: Power Requirements: 3V (2 AA alkaline or rechargeable batteries) Transmitter: Battery Life: =8 hours (alkaline) Transmitter: Power Consumption: 130 mA, +/-15 mA Transmitter: Operating Temperature Range: -18-57 deg.C (0-135 deg.F) Dimensions (H x W x D): 43 mm x 87 mm x 148 mm (1.69 x 3.42 x 5.82 ) Weight: 312 g (11 oz)