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Black over-ear headphones with matte finish and padded ear cups

HALO HAYLOU S40 Over-Ear Headphones Black 40mm 90h ANC Bluetooth 6.0

SKU CH-WTYQ-09MB2

Over-ear headphones with 40 mm drivers, hybrid ANC up to 50 dB, Bluetooth 6.0 and 90 hours of playtime

  • Driver size40 mm
  • Headphone styleOver Ear
  • Impedance32 ohms
  • Signal-to-noise ratio97 decibels
  • Power supplyCell, lithium polymer, lithium ion, false
  • Audio sensitivity97 decibels
  • 50 dB hybrid ANC cuts up to 95 % of ambient noise automatically
  • Hi-Res and LDAC via 40 mm + 20 mm titanium drivers
  • Bluetooth 6.0 with six mics and AI voice isolation
  • Up to 90 hours playtime, 60 hours with ANC on
  • 10-minute charge adds five hours of listening

HALO HAYLOU S40 Over-Ear Headphones

The HALO HAYLOU S40 is a pair of over-ear wireless headphones with hybrid active noise cancellation and Bluetooth 6.0 connectivity. It supports Hi-Res Audio and LDAC codec for high-quality wireless listening. The 40 mm titanium-plated diaphragm drivers deliver a 97 dB signal-to-noise ratio and 32 ohm impedance. A detachable boom microphone joins five built-in mics for AI-enhanced voice pickup during calls.

90-Hour Battery and USB-C Charging

Up to 90 hours of playback are available with noise cancellation off, and 60 hours with it active. A 10-minute charge adds roughly 5 hours of listening time, while a full charge takes 2.5 hours via USB-C. The lithium-ion cell powers the headset without increasing weight to 0.35 kg. Passive wired use is possible through the USB-C port, though the supplier advises against operating the headphones while they charge.

Hybrid ANC Up to 50 dB Reduction

Hybrid ANC reduces ambient noise by up to 95 percent, targeting low-frequency drone such as engines and trains. Adaptive algorithms adjust cancellation depth automatically to match the environment. Six microphones feed the AI noise-suppression system for clear calls even in wind or traffic. Bluetooth 6.0 provides a stable, low-latency link for extended sessions without connection drops.

How it compares

Measured against everything we stock in Earbuds & Over-Ear Headphones, at today’s prices. Recalculated every night.

Price $72.99
Pricier than about 80% of the 7,078 comparable items (median $25.99).

Specifications

Product
Brand nameHALO
Model nameHAYLOU S40, HAYLOU
Part numberHAYLOU
Product typeOver the Ear
Product colorBlack
Audio & video
Driver size40 mm
Headphone styleOver Ear
Impedance32 ohms
Signal-to-noise ratio97 decibels
Audio sensitivity97 decibels
Wearing styleOver ear
Noise cancellationActive
Mic impedance~3K ohm
Mic signal-to-noise ratio97 decibels
Mic sensitivity97 decibels
Connectivity
Wireless technologyBluetooth
Ports & slots
ConnectionUSB
Power
Power supplyCell, lithium polymer, lithium ion, false
Battery pack90 h
Run time90 h
Charging time2.5 h, 5 h
Built-in batteryCell
Size & build
Cord lengthUser Manual
Product weight0.35 kg
In the box
In the box1*HAYLOU S40 Noise Cancelling Bluetooth Headphones, 1*Type-C 2-in-1 Cable, User Manual, 1*Detachable Microphone

Questions about this item

How do I pair the S40 with my phone and what step do people often miss?

Turn on the headphones, hold the power button until the indicator flashes, then select "HAYLOU S40" in your phone's Bluetooth 6.0 menu. The step many miss is enabling LDAC in the Haylou Sound app for Hi-Res audio.

Which parts will need replacement after extended use?

The ear cushions and the detachable microphone are the components most likely to wear out. The internal lithium polymer battery is not user-replaceable and supports up to 90 hours playtime per charge.

What is the first limitation I will hit during a long listening session with ANC on?

With active noise cancellation enabled, the battery lasts 60 hours before needing a 2.5 hour recharge. A 10 minute quick charge adds 5 hours of playback if you run low.

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