Lavalier Lapel Microphone Omnidirectional Mic with Easy Clip On System Perfect for Recording Youtube / Interview / Video Conference / Podcast / Voice Dictation / iPhone https://www.amazon.com/dp/B01E3L1ESS/ref=cm_sw_r_cp_apa_i_0k9gDbFKCNQXH
Apple Lightning to 3.5 mm Headphone Jack Adapter https://www.amazon.com/dp/B01LXJFMGF/ref=cm_sw_r_cp_apa_i_Gl9gDbSFZ8MF9
Webaround Portable Webcam Background, 56" (Chroma Key Green) https://www.amazon.com/dp/B06Y2G2YP5/ref=cm_sw_r_cp_apa_i_qv9gDbWA8XX2W
I put the lighting, the microphone and adapter and a green screen so he can change the background. I think it comes to 110usd.
You will need the apple lightning dongle. https://www.amazon.com/Apple-Lightning-Headphone-Jack-Adapter/dp/B01LXJFMGF/
Yamaha MG10. $199.
1/4" and XLR 3-pin ins and outs.. EQ (bass/treble control) on channels. Has a few extra channels more than you need at this moment, because you WILL eventually need "1 more channel"... You could go smaller/cheaper on the mixer, but you'll likely outgrow it quickly. Stay with Yamaha, Mackie. Don't get 'Harbinger' (from Guitar Center), I'd stay away from Behringer's cheap stuff as well.
https://www.amazon.com/Yamaha-MG10-10-Input-Stereo-Mixer/dp/B00I2J4TWG
If anyone will be singing in the mic, now or in the future, the FX model with reverb is only $30 more.
https://www.amazon.com/Yamaha-MG10-10-Input-Stereo-Mixer/dp/B00IBIVL42?
You'll need a Lightning to 1/8" TRS female adapter, and a 1/8" TRS male to dual 1/4 TS male cable. 1/4" ends go into channels 3/4 L+R. Cables to house speakers come from "Stereo Out" in blue box on mixer. Done.
https://www.amazon.com/Apple-Lightning-Headphone-Jack-Adapter/dp/B01LXJFMGF
https://www.amazon.com/Cable-Matters-3-5mm-6-35mm-Breakout/dp/B07PHVMTNT
Those?
This is the one I use for my videos:
It is the Maono Lavaliere.
The reason I like it is that it has a long cable.
https://www.amazon.com/gp/product/B01M4J5WCM/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
The one thing you will need, however, in addition, is apple Headphone jack Lightning adapter if you use an Iphone
Here is a video I made with it, so you can gauge the sound quality yourself:
Good-luck,
John
Connect one of these to the amp's line out using this type of adapter. Then use one of these to connect to iPhone.