BOYA Mixer and microphone for smartphones

BOYA BY-DM20 Dual-channel recording kit for Android/Mac/Windows, black, All-in-one recording solution 3. Type-C port, Compact and easy to use, Dual-channel audio inputs, Ideal for interview or other situation with 2 speakers, Stereo and Mono mode selectable, Real-time separate volume control, Headphone monitoring, Compatible with iOS, Android(Type-C), Laptop, Specifications: Frequency response: 45Hz-20kHz, Gain: 0-30dB, Sampling frequency: 44.1kHz / 48kHz, Power supply: from smartphone and laptop, Output connector: Type-C/Lightning/USB.