The km5 Lightwear Headphones Hp1 pair a lightweight retro design with modern functionality. The km5 Lightwear Headphones Hp1 pair a lightweight retro design with modern functionality. is a senior ...

Headphones had existed for well over 50 years by the time Sony’s Walkman debuted in 1979, but the portable cassette player helped popularize the technology by miniaturizing it. km5’s new Lightwear ...