Saramonic Wireless Lavalier Microphone System Blink500 B4 Saramonic Blink 500 B4 is an incredibly compact lightweight and professional sounding wireless microphone system for the Apple iPhone and iPad The included clip-on transmitter is small enough to clip directly to your shirt collar and the included RXDi MFi Certified Lightning dual-channel receiver is so lightweight and unobtrusive that it won't get in your way at all It can easily be used on devices that are mounted in handheld gimbals and the receiver is even capable of accepting the signal from two microphones if you add another Blink 500 TX transmitter sold separately Saramonic Blink500--2.4 GHZ Operation System No technical knowledge of audio is required to operate The Blink500 system operates on the interference-free 2.4GHZ spectrum and automatically hops to free channels to avoid static noise and audio dropouts