• Weight: ~9.6 oz total · ~4.5 oz on-head
• ANR: Electronic ANR with selective modes (in-ear)
• Bluetooth: Optional models
• Power: 2× AA · ~45 hrs / ~25+ hrs continuous BT; XLR aircraft-power options
• Warranty: 5-year limited
• Price range: typically ~$1,050–$1,150 — check live

• 737/RJ crew forum discussion: much less head fatigue than A20/A30 cups on long days
• Easy to stow one ear for pushback / off-headset talk
• Native 5-pin XLR configs (crew guidance often favors XLR + GA adapter, not reverse)
• In-ear tolerance is personal — some hurt after a few hours
• Slightly more ambient noise than over-ear Bose for many wearers
• Hard case can eat bag space

Choose ProFlight vs A30 when on-head weight and heat matter more than maximum cup isolation. Try tip fit before committing if you can.

• Weight: ~12.3 oz without cable (349 g)
• ANR: Hybrid ENC · peak ~30 dB @ 150 Hz (mfr)
• Bluetooth: Yes (audio mute prioritizes ICS)
• Power: 2× AA · up to ~50 hours; fail-safe passive if batteries die
• Warranty: 5-year · Made in USA
• Price range: typically ~$900–$1,050 — check live

• Lighter / packs smaller than classic DC clamps; pilots note compact case
• TSO + long battery claim; some prefer DC mic vs Bose
• Usually undercuts Bose street pricing
• ANR rarely described as “as quiet as Bose” in crew forum discussion
• Confirm plug config for your jet (standard sheet lists dual GA)

Choose ONE-X vs A30 for lower weight/price and DC support culture. Vs ProFlight: stay over-ear without Bose pricing.

• Weight: under 2 oz on head (mfr)
• Attenuation: 29–47 dB passive (Comply tips) — not electronic ANR
• Bluetooth: Not built-in on Pro Plus (wired music; BT via other models/add-on)
• Power: None required
• Warranty: 3-year limited + 30-day guarantee
• Price range: typically ~$700–$800 (MSRP $775) — check live

• Frequently named by airline crews next to Bose; zero battery drama
• TSO Pro Plus; robust boom vs Classic per forum comparisons
• Lowest on-head weight in this set
• Seal depends entirely on tip fit — poor seal = poor isolation
• Not electronic ANR; no built-in Bluetooth on Pro Plus
• Reject if you simply hate in-ear tips

Choose Clarity vs ProFlight for no batteries and lower price if tip fit works. Vs A30: only if you are fully tip-tolerant and want minimal head load.

• Kit: UFlyMike HARMONY converts QC35 / QC35 II into an aviation headset with boom mic
• Kit list: ~$299 (uflymike.com) — headphones sold separately
• Headphones: QC35 II discontinued; used/refurb often ~$100–$250 depending on condition — check live
• Combo approx: often roughly ~$400–$550 total — approximate; check live
• Harmony weight: ~3.25 oz excluding headphones
• Plugs: dual GA 2-plug, XLR 5-pin, LEMO, and others — match your aircraft
• Bluetooth: QC35 BT is disabled when Harmony is attached (mfr note)
• Power: depends on QC35 battery for ANC
• TSO: generally No — not a TSO aviation headset; Part 121 operators often require TSO
• Warranty: UFlyMike ~2-yr kit + Bose headphone policy

• Can be much cheaper than A30 / ProFlight if you already own or find used QC35s
• Strong consumer ANC comfort many already know from travel
• Multiple plug styles available via the kit
• Not TSO — verify company policy before relying on it for line flying
• Bluetooth off with kit attached; ANC depends on headphone battery
• Aftermarket mount durability varies by reports; two-piece purchase

Choose this combo only as a budget / off-line / training option after confirming your operator allows non-TSO gear. Prefer A30, ProFlight, ONE-X, or Clarity when TSO is required.