In short, the Cerulean F1s are a mixed bag. For Bluetooth headphones they're relatively discreet, they're comfortable to wear, and sound quality isn't bad, despite a complete lack of bass.
Had the headset function worked as it should I'd consider giving them a decent score - it's the feature that gives headphones like these the edge over wired headphones, after all - but alas, it doesn't and that considerably reduces the F1s' usefulness. If you're after a decent pair of Bluetooth earphones/headphones for music and phone calls, I'd suggest you look elsewhere.
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