The greatest wireless contact mic fail of all time

The Preamp I Used: https://metalmarshmallow.com/product....
The Bluetooth Module: https://www.icstation.com/bluetooth-c...

0:00 Introduction
0:29 Transmitter Fail 1
2:05 Receiver Fail 1 (Native Bluetooth)
2:30 Receiver Fail 2 (USB)
4:16 Receiver Fail 3 (Analog TRRS)
5:14 First Sound
5:51 Latency Measurement
7:02 Transmiter Fail 2 (Noise Reduction)
8:12 Stupidest Receiver of All Time Fail 4
8:37 Mbira Test
9:09 Transmiter Fail 3 (More Noise Reduction)
9:42 Recording Mbira and Guitar
10:56 White Noise Measurement
11:47 Noise Floor Measurement
13:37 Version Without Preamp
14:52 Observations
15:14 Secret Guitar Recording
15:31 So Long and Thanks for All The Fish