About this gear
The BT540i brings Koss's signature sound character to a modern wireless platform, pairing closed-back isolation with Bluetooth connectivity for everyday listening. Built on the proven 540 design lineage, it maintains the warm, punchy midrange Koss is known for while adding the convenience of cordless use.
About Koss
American headphone pioneer founded in 1958 by John C. Koss in Milwaukee — credited with inventing the first stereo headphone (the SP/3). Koss's Porta Pro, introduced in 1984, remains in production and is one of the most beloved headphones ever made, offering remarkable sound quality and musicality a...
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