Shure SLX14/93 Lavalier Wireless System, H5 Audio Frequency response (TX): 45Hz - 15kHz Maximum SPL: 149 dB Format: Analog Range Line of sight: 300' Obstructions: 100' Microphone # of transmitters: 1 Capsule: Condenser Pattern: Omni Type: Lavalier Battery Type: AA x 2 Life: 8 hours Frequencies Available frequencies: 960 Bandwidth: 24MHz Construction Transmitter: ABS plastic Receiver: Metal Dimensions Rec