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About this gear
The TRN BT20S Pro is a Bluetooth upgrade cable rather than a standalone IEM, letting users convert any 2-pin or MMCX wired IEM into a wireless setup with aptX support and onboard controls. It's aimed at budget IEM owners who want wireless convenience without buying a whole new earphone, though sound quality still depends entirely on the attached IEM.
About TRN
Chinese IEM brand competing directly with KZ in the ultra-budget segment. TRN offers hybrid and multi-driver IEMs with modular cable systems and frequent new releases. Their VX Pro and TA series have earned respect for delivering clean, detailed sound at entry-level prices, with build quality that o...
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