Saramonic LavMicro U1A Omnidirectional Lavalier Microphone with Lightning Connector for iOS Devices (6.5' Cable)

This microphone is designed to connect directly to the lightning port of your iPhone or iOS device. It will also connect to the RODE Wireless GO transmitter. NOTE: Multi-Section, Multi-Use Cable: The cable is made of two sections: a first section with the lav mic at one end and a 3.5mm TRS female connector at the other, and a second section with a 3.5mm TRS male connector at one end and an MFi Certified Lightning connector at the other. This two-section cable facilitates multiple purpose. Use the first section of the cable to route the mic into iOS devices that still offer conventional 3.5mm jacks. Conversely, the second section can be used to connect either the lav mic or any audio device with a 3.5mm TRS output (including wireless receivers and media players) to your iPhone or iPad.

Unfortunately no. You could use the Saramonic LavMicro+DC (BH #SALAVMICRODC) which allows you to use wired 3.5mm headphones and the lavalier simultaneously, it also has USB and USB-C capabilities as well. Or if you're looking for a cheaper option you can use the Saramonic SR-M1 Lavalier (B&H # SASRM1) and the Saramonic SR-EA2D Lightning Audio Interface (BH #SASREA2D), which also has a headphone output. Put the headphone output on the SR-EA2D is app dependent, while the LavMicro+DC is not app dependent making the LavMicro+DC (BH #SALAVMICRODC) a better option.