Movo WMIC70 Wireless 48-Channel UHF Lavalier Microphone System with Omni-Lav, Camera Mount and 3.5mm/XLR Outputs (328-foot Range) UHF Frequency Range: 584 MHz-608 MHz; 48 Selectable Channels Wireless Range: 100m (328-feet) 3.5mm Mic and Line Inputs; XLR and 3.5mm Outputs Ideal for ENG/EFP & DSLR/Camera Audio Transmitter and Receiver are powered by 2 "AA" batteries for up to 8-hours of operation <span class="a-text-bold">Frequency response:</span>60Hz-15 KHz+/-3 dB <span class="a-text-bold">Audio input connector:</span>3.5mm mini jack <span class="a-text-bold">Audio input level:</span>600 mV-2000 mV <span class="a-text-bold">Power supply:</span>Two AA batteries (up to 8 hours of run-time) <span class="a-text-bold">Transmitter/Receiver Dimensions (each):</span>4.2&#034; x 2.6&#034; x 1.1&#034; (10.6 x 6.7 x 2.9 cm) <span class="a-text-bold">Weight (each):</span>95g (3.4 oz) without batteries <span class="a-text-bold">Signal-to-noise ratio:</span>80 dB <span class="a-text-bold">Distortion:</span>0.8% (-60 dBV, 1 KHz input) <span class="a-text-bold">Audio output level:</span>120 mV <span class="a-text-bold">Audio output connectors:</span>3.5mm and XLR <span class="a-text-bold">Polar pattern:</span>Omni-directional <span class="a-text-bold">Frequency Range:</span>35Hz ~ 18 KHz <span class="a-text-bold">Signal / Noise</span>74dB SPL <span class="a-text-bold">Sensitivity:</span>-30dB +/-3dB / 0dB=1V/Pa, 1 kHz <span class="a-text-bold">Connector:</span>3.5mm locking mini plug <span class="a-text-bold">Length:</span>1.2m (4&#039;)