The Saramonic Blink 500 B4 is an incredibly compact, lightweight, and professional sounding two-person wireless microphone system that was made for the Apple iPhone and iPad. The two included transmitters are small enough to clip directly to shirt collars, and the included RXDi MFi Certified Lighting receiver is so lightweight and unobtrusive that it can easily be used in handheld gimbals. The Blink 500 B4 makes using multiple wireless microphones with Apple devices as easy as possible and it provides broadcast-quality sound in a package that's amazingly compact and lightweight. IN THE BOX 2 x Blink 500 TX Transmitter with Built-In Microphone and Clip 1 x Blink 500 RXDi Dual-Receiver with MFi Certified Apple Lightning Connector 2 x SR-M1 Omnidirectional Lavalier Microphone 2 x Alligator-Style Lavalier Microphone Clip 2 x Foam Lavalier Windscreen 2 x 1’ (30.5 cm) gold-plated USB-C to USB-A charging cable 1 x Pairing Pin