The Beyerdynamic DT220 is a strange headphone. Nobody quite knows when production ended, but there have been ads for them dating back to the late '70's. They are studio headphones. Other than the ad, there is pretty much no information about them to be found other than a few Head-Fier's opinions.
NarMoo R1M High-Fidelity Noise Isolation Headphones with Mic
NarMoo R1M headphones feature is an in-ear 10mm high-defination driver, for outstanding,...
Nowall CH-1 Bluetooth Earphones
The world's first dual-driver Bluetooth® earphone In-line volume control Microphone for use in...
Stolen from Wikiphonia: Transducer: Electrostatic-Dynamic Hybrid Type: Supra-aural,...
Audio-Technica ATH-A500 Headphones
Whether in the home, or in schools and universities, boardrooms, council chambers or places of...