The Shure BLX24/B58 Handheld Wireless System gives you world-class design and rock-solid build quality, along with easy setup and operation. Thanks to Shure #39;s cutting-edge QuickScan technology, frequency selection hassles are a thing of the past. The system includes the BLX4 receiver and the BLX2/B58 handheld transmitter with integrated Beta 58A supercardioid dynamic microphone capsule. If you #39;re ready to perform untethered, Shure #39;s BLX wireless systems are a smart, affordable choice. Enjoy legendary Shure sound and performance. Take the stage confidently with the Shure BLX24/B58 Handheld Wireless System. Tech Specs Simultaneous Systems Per Band: 12 System: Analog/Digital: Analog System: Frequency Range: 512-542MHz System: Operating Range: 300 ft. Line-of-sight System: Frequency Response: 50Hz-15kHz System: Microphone Included: Yes System: Channel Selection: Auto Microphone: Type: Dynamic Microphone: Polar Pattern: Supercardioid Microphone: Frequency Response: 50Hz-15kHz Transmitter: Form Factor: Handheld Transmitter: Battery Type: 2 x AA Transmitter: Battery Life: Up to 14 hours Transmitter: Dimensions: 8.87 #34; x 2.12 #34; Transmitter: Weight: 0.48 lbs. Receiver: Antenna Type: Fixed Receiver: Type: Table Top Receiver: Displays: LED Receiver: Outputs: 1 x XLR, 1 x 1/4 #34; Receiver: Dimensions: 1.57 #34; x 7.4 #34; x 4.05 #34; Receiver: Weight: 8.5 oz.