Wired Miniature Electret Microphone - Adafruit 1935 soldering tip cleaner It uses CSR Blue core

It uses CSR Blue core 04-External single chip Bluetooth system with CMOS technology and with AFH(Adaptive Frequency Hopping Feature)

This item is just that

You'll get 5V (+-5%) regulated output from higher voltage input

so they work alongside other devices as long as address conflicts are avoided and the total bus length is reasonable

Wired Miniature Electret Microphone - Adafruit 1935 soldering tip cleaner It uses CSR Blue coreWired Miniature Electret Microphone The Wired Miniature Electret Microphone is a tiny electret condenser capsule with pre attached wires ready to solder into your project. At just a few millimeters across, it's one of the smallest ways to add voice sound input to an Arduino, Raspberry Pi, or embedded system. Technical specifications Type Electret condenser (omnidirectional) Wires Pre attached Size ~6 mm diameter