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The Shure BLX4 Wireless Receiver delivers reliable UHF wireless audio performance designed for use with Shure BLX transmitters. This single-channel tabletop receiver is compatible with BLX2 handheld transmitters and BLX1 bodypack transmitters, allowing it to be integrated into handheld, lavalier, headset, or instrument wireless setups. The receiver features QuickScan frequency selection, which automatically identifies a clear RF channel to help minimize interference during setup. Internal antenna diversity helps maintain stable wireless reception during live performances, presentations, and events. The BLX4 offers balanced XLR and 1/4-inch outputs for connection to mixers, PA systems, and other audio equipment. Under typical conditions, the receiver supports wireless operation up to 300 ft (91 m) line-of-sight and allows up to 12 compatible systems per frequency band. Designed with Shure’s professional wireless engineering, the BLX4 provides dependable wireless audio performance for live events, houses of worship, conferences, and stage environments. H9 (512–542 MHz) UHF FREQUENCY BAND: Operates on the H9 (512–542 MHz) UHF frequency band for dependable wireless audio transmission in regions where this spectrum is authorized. Verify local compliance before ordering. RELIABLE WIRELESS RANGE: Provides dependable audio reception up to 300 ft (91 m) line-of-sight under typical conditions, helping maintain stable wireless performance for live events and presentations. BLX SYSTEM RECEIVER ONLY: Includes BLX4 single-channel receiver and power supply. Compatible with BLX1 bodypack and BLX2 handheld transmitters. Transmitters and microphones are sold separately. QUICKSCAN FREQUENCY SELECTION: One-touch QuickScan frequency selection automatically finds a clean RF channel to help reduce interference during setup. PROFESSIONAL AUDIO CONNECTIVITY: Features XLR and 1/4-inch outputs for mixers and PA systems, with LED indicators for signal status and Shure UHF design for reliable performance. UPC 042406470735 Brand Shure Color Black Model Name BLX4 Unit Count 1 Count Item Weight 2.3 Pounds Manufacturer Shure Model Number BLX4=-H9 BuiltIn Media BLX4 single-channel receiver, power supply, user guide Connector Type XLR Item Type Name Instrument Condenser Microphone Item Dimensions 13.5 x 4 x 12 inches Mfr Part Number BLX4=-H9 Special Feature QuickScan, Diversity Technology Antenna Location Tv Compatible Devices Headphone Number of Channels 1 Number of Batteries 2 AA batteries required. (included) Warranty Description 2-year limited Microphone Form Factor Handheld Connectivity Technology Wireless Global Trade Identification Number 00042406470735