Best Bluetooth TWS Adapters For IEMs

By Tinh Lee, November 13, 2021
TWS adapter IEMs

You have a great pair of IEMs and sometimes you want to discard completely the cable, a TWS (true wireless stereo) adapter provides a solution whether you have MMXC or 2-pin connector IEMs. They come in form of attachments to IEMs and go over your ears. 

Note that unlike Shure Aonic 215 that provide the seamless experience for Shure 215 IEMs, these adapters may produce some hiss sound when pair with your IEMs because they are not generally configured to specific models. 

Adapters with Qualcomm Bluetooth Chipset on board seem to have more solid Bluetooth connection and better sound quality.

Check your IEMs' connector types before purchasing a pair of adapters.

How we picked?
Battery life
TWS Adapters last 6 hours up to 12 hours

KZ AZ09 Pro

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Editor's Rating
Bottom Line
Compatible with with 2-pin (0.75 / 0.78 mm) the Pro have solid Bluetooth connection, better sound quality and comfortable fit compared to the previous model, KZ AZ09.
Bluetooth version
Codec
Battery life
Rated up to 8.0 hours
Water-Resistant
IPX4
Noise-Cancelling (ANC)
No
Multipoint
No
Pros
Comfortable fit
Cons
No wireless charging

Aonic 215 Gen 2

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Editor's Rating
Bottom Line
Actually these TW Secure Fit Adapter Gen 2 is an integral part of Aonic 215 Gen 2, their battery lasts longer than the 1st gen. Despite being dedicated to Shure IEMs, these adapters definitely work well with any other IEMs with MMCX connector.
Bluetooth version
Codec
Battery life
Rated up to 8.0 hours

TRN BT20S PRO

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Editor's Rating
Bottom Line
Look a bit larger than KZ AZ09 Pro, the TRN BT20S PRO may be good to go if you have IEMs of comparable-size.
Bluetooth version
Codec
Battery life
Rated up to 9.0 hours
1 minute