Description Experience freedom and clarity of sound with the UNK-660 Dual Handheld Wireless Microphone System. Ideal for live events, performances, and recording, this system offers interference-free transmission, long-lasting batteries, and an ergonomic design that ensures comfortable, reliable use. Elevate your sound experience with the UNK-660 Dual Handheld Microphone System . Carrier frequency : 668-698 MHz (depending on region) Dynamic range : 96 dB Total harmonic distortion : Less than 0.1% Frequency response : 20 Hz - 20 kHz (±2 dB) Signal to noise ratio : 96 dB Reception sensitivity : -95 dBm Transmission delay : < 3 ms Audio output : 1 x 6.3 mm (mix) 2 x balanced XLR outputs Handheld Microphone: Carrier frequency : 668-698 MHz Output power : 10 dB Harmonic radiation : -50 dBc Battery : 2 x 1.5 V AA Battery life : 5 hours