Best Headphones Under $30 | The Wirecutter. I bought these on @wirecutter’s advice and don’t regret it one bit. The best $8 I’ve spent this year? They’ll be used for travel and office, mostly, as I only need something with decent isolation that doesn’t take up space and won’t fall out of my ear. I only have one pair of worthy over-ear headphones, so they stay at home. If I left those at the office or in a hotel or something I would be reduced to tears.