The Funien Mini Wireless Microphone S17 is a 3 in 1 receiver designed for mobile phones, offering a clear and hands-free audio recording experience. The microphone has a battery life of 6 hours and a frequency range of 20Hz-20KHz. It features 360° omnidirectional pickup, built-in noise reduction chip, and DSP Active Noise Reduction Technology for clear and high-quality sound recording. The receiver has a Type-C interface for charging and a 3.5mm jack port for real-time monitoring. It is compatible with Android smartphones and tablets with Type-C interface, iOS devices, and cameras with 3.5mm interface. The package includes 2 microphones, 1 receiver, charge cable, and user manual.