Concrete headphones weighing 5 kg made as April Fools' prank
Headphones maker Master & Dynamic has teased a pair of headphones made of solid concrete as an April Fools' Day prank. The company says that the headphones, priced at â¹26,000, will weigh nearly 5 kg. "Master & Dynamic has consistently chosen the road less travelled. As of today, that road is paved with concrete," said CEO Jonathan Levine.