Ideal for content creators, vloggers, and streamers, the Green Lion Duo Cast Wireless Mic with Type-C and Lightning interface affords a powerful audio experience. However, it does operate at a frequency of 2.4GHz digital to enable the mic to secure a clear, high-quality signal of 20Hz-20KHz while operating over a sampling frequency of 48kHz. It can transmit audio clearly from a range of up to a distance of 20 meters. Besides automatic pairing and plug-and-play, it is easy to use and provides a sensitivity of -38dB, thus assuring you that sounds are really well captured. The built-in 80mAh battery offers a beneficial 7 hours of functioning time and recharges through a robust 500mAh charging case, enabling another three times the charge. Also, with an SNR greater than 75dB, you can be assured of a perfect, clean connection from an interference-free source for recording purposes. Features: Long Distance Transmission Automatic Pairing 7 Hours Working Plug & Play 3 Times Charging Case Charge