Why are earbuds usually cheaper than headphones?

Remember the headphones with a built-in valve amp? They're back in a new and improved version

4 cheap headphones and earbuds we've tested to avoid 'headphone dodger' fines — they're all cheaper than the £100 you'll pay if you're caught

Get Sennheiser's Momentum 4 headphones with 60-hour battery life for $204 today