Headphone Zone X KZ - EDX Pro + FiiO - BTR11 - Black vs Open Box Questyle NHB12 10.2mm Dynamic Driver IEMs (Ships Only to Japan) - Open Box Questyle NHB12 (Ships Only to Japan)

Every tracked fact about the two, side by side - prices, history lows, ratings and measured tuning. No verdict: which one to buy is the visitor's decision, always.

Headphone Zone X KZ - EDX Pro + FiiO - BTR11 - Black KZ Now ₹2,699 at Headphone Zone Lowest ever ₹2,699 on Saturday, 12th Sept, 2026 Full prices & history

Open Box Questyle NHB12 10.2mm Dynamic Driver IEMs (Ships Only to Japan) - Open Box Questyle NHB12 (Ships Only to Japan) Questyle Out of stock at every tracked store Lowest ever ₹11,412 on Sunday, 13th Sept, 2026 Full prices & history

Measured tuning, side by side

Both curves are real community measurements (gold: Headphone Zone X KZ - EDX Pro + FiiO - BTR11 - Black · ink: Open Box Questyle NHB12 10.2mm Dynamic Driver IEMs (Ships Only to Japan) - Open Box Questyle NHB12 (Ships Only to Japan)). Each is level-aligned to its own 200 Hz–1 kHz mean, so rig offsets don't skew the comparison.

Headphone Zone X KZ - EDX Pro + FiiO - BTR11 - Black Open Box Questyle NHB12 10.2mm Dynamic Driver IEMs (Ships Only to Japan) - Open Box Questyle NHB12 (Ships Only to Japan)

Tuning distance±1.37 dB RMS92% match - Very close. Computed on a shared 40-point log grid, 20 Hz–10 kHz. A measurement-space fact, not a promise two ears agree.

What a curve cannot seeBuild, driver QC unit-to-unit, comfort, isolation, accessories, warranty and resale value sit outside the graph - usually what the pricier one is charging for.

The decision, factually

Cheaper right nowHeadphone Zone X KZ - EDX Pro + FiiO - BTR11 - BlackLowest current price across all tracked stores.

Deepest discount ever seenHeadphone Zone X KZ - EDX Pro + FiiO - BTR11 - BlackFrom each product's own recorded price history.

This page reports facts and expresses no opinion on which to purchase.