With slightly lowered highs, punchy bass and surprisingly great mids, the ZSN Pro is hands down the best headphones on the market under $30. At the moment. As a budget travel option, I love this little fella to death, and as someone who hates BA bass, the low-end hybrid drivers sound spot on. There's a bit of mid-bass leakage, which gives it a warmer lower-midrange sound, but for less than $30 I can't complain. There seems to be slightly better sub-bass extension and a slightly wider soundstage compared to the original ZSN, which is generally good (although these are subtle changes). With all that said, I think it's worth spending just a few bucks more to upgrade to the Tin Audio T2 if you're looking for a relatively neutral audio signature. For the price, however, the ZSN Pro couldn't be any better.
Sony MDR-ZX310AP ZX Series Blue Wired On Ear Headphones with Mic: Immersive Sound Experience
48 Review
New White Marshall Minor II In-Ear Bluetooth Headphone
101 Review
Massdrop x Koss Porta Pro X On-Ear Headphones: π§ Noise-Cancelling Mic, Voice Assistant, Track Skip | Collapsible Midnight Blue
314 Review
Purple Philips SHE3590PP/28 In-Ear Headphones - Superior SEO
189 Review
Huawei Freebuds Pro MermaidTWS with Active Noise Cancellation - Silver Frost
299 Review
π§ Huawei FreeBuds Pro Earbuds with Advanced Noise Cancellation, Bluetooth 5.2, and 3-Mic System for iOS and Android (Carbon Black)
295 Review
Upgrade Your Music Experience with XiaoMi True Wireless Earphones 2 Basic - Longer Battery Life and Superior Sound Quality (White, International Edition)
341 Review
Headphones Sennheiser CX 300-II, black
318 Review