Video comparison of the three most popular Bluetooth TWS adapters
TRN BT20s Pro: https://www.youtube.com/watch?v=YyWbP4nyIYA
FiiO UTWS3: https://www.youtube.com/watch?v=wAr6sO_8xUQ
iBasso CF01: https://www.youtube.com/watch?v=VshNQKJKDFk
Music by Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0 License
http://creativecommons.org/licenses/by/4.0/
