We recently installed an IEM system for a client and bought it for a test run to get singers used to in-ear headphones. We bought 8 of these and only 2 of them worked properly. The other 6 required you to hold down the built-in button to get sound. We ended up buying the M6 headphones and haven't had any issues since. They can work for general use but are not intended to be true IEMs.
π§ HUAWEI Freebuds 4i: Wireless Earbuds with Active Noise Cancelling & 10H Battery Life in Black
279 Review
Headphones Sennheiser CX 300-II, black
318 Review
Upgrade Your Audio Experience with Samsung Galaxy Buds+ Plus: True Wireless Earbuds with Improved Battery and Call Quality in White, including Wireless Charging Case and Velvet Pouch.
320 Review
Upgrade Your Music Experience with XiaoMi True Wireless Earphones 2 Basic - Longer Battery Life and Superior Sound Quality (White, International Edition)
341 Review
π§ Experience Unmatched Audio Quality with Marshall Major 4 Bluetooth Headphones
104 Review
Panasonic RP-HS46 Slim Clip-Type Earphones in White: Quality Sound On-the-Go
76 Review
Sony MDR-ZX310AP ZX Series Blue Wired On Ear Headphones with Mic: Immersive Sound Experience
48 Review
Massdrop x Koss Porta Pro X On-Ear Headphones: π§ Noise-Cancelling Mic, Voice Assistant, Track Skip | Collapsible Midnight Blue
314 Review