Boya BOYALINK All-in-one Design Wireless Microphone System Wireless Microphone for iPhone/Android/Camera Vlogging, All-in-One Lapel Dual Mic System & Lightning & USB-C Inputs & Battery Case for Smartphones/DSLR YouTube Facebook Live All-In-One Storage Fits All Scenarios Ultra-Long Battery Life Ready for Use Right Out of the Case One Step to Open the Noise Reduction Function Sound Like a Professional Charge Your Device While in Use Customize the Sound You Want Dual-Channel Recording Automatically Frequency-Hopping Technology Powerful Anti-Interference User-Friendly Buckle Design