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Grey bone conduction headphones, lightweight open-ear design, 26 g

NANK

NANK Runner 4 Bone Conduction Headphones Grey 16 GB 26 g Bluetooth 5.4

SKU CH-W15D-5TVBR MPN Runner 4

Bone conduction headphones with 16 GB MP3 storage, IPX8 waterproofing, Bluetooth 5.4 and 26 g weight

  • TypeBone Conduction
  • ColorGrey
  • Ear CouplingBone Conduction
  • WeightApprox. 26 g
  • Noise CancellingYes
  • Wireless TypeBluetooth

Model Runner 4

  • Open-ear design keeps you aware of surroundings
  • 26 g frame stays comfortable on long sessions
  • Bluetooth 5.4 gives stable wireless link
  • IPX8 rating handles sweat, rain and submersion
  • 16 GB storage holds music for phone-free runs

Bone conduction headphones for open-ear awareness

The NANK Runner 4 uses bone conduction technology to transmit audio through the skull, leaving the ear canal open to ambient sound. Weighing approximately 26 g, the frame is designed for extended comfort during long training sessions. The grey finish suits everyday athletic use.

IPX8 waterproof rating

An IPX8 rating means the headset withstands submersion, making it suitable for swimming as well as running or cycling. Bluetooth 5.4 provides a stable wireless link to smartphones, tablets or laptops. The open-ear fit stays secure during vigorous movement without inserting anything into the ear.

16 GB internal MP3 player replaces a separate device

Built-in 16 GB storage lets you load music directly onto the headphones for phone-free workouts. Up to 8 hours of continuous playback covers most long-distance sessions. ResoVibe™ technology and OT leakage reduction 3.0 limit sound bleed so nearby people hear less of your audio. Not for listeners who want full noise isolation or in-ear bass response.

Highlights

  • Open-ear design keeps you aware of surroundings
  • 26 g frame stays comfortable on long sessions
  • Bluetooth 5.4 gives stable wireless link
  • IPX8 rating handles sweat, rain and submersion
  • 16 GB storage holds music for phone-free runs

Specifications

BrandNANK
SeriesRunner 4
ModelRunner 4
Part NumberRunner 4
TypeBone Conduction
ColorGrey
Ear CouplingBone Conduction
WeightApprox. 26 g
Noise CancellingYes
Wireless TypeBluetooth
BatteryMax 8hrs (CONTINUOUS COMMUNICATION TIME)
Operating TimeMax 8 hrs
Sports TeamNO
Contains Embedded BatteryYes
CompatibilitySmartphone, Tablet, Laptop (Bluetooth/TF Mode)
Shipping weight0.23 kg
Package size171 × 133 × 51 mm

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Questions about this item

What does Bluetooth 5.4 cap in practice?

It provides a stable wireless link for streaming audio and taking calls from smartphones, tablets or laptops within standard Bluetooth range.

What physical space does the 26 g frame need to sit securely?

The open-ear design rests on the cheekbones just in front of each ear, so no ear-canal or over-ear clearance is required.

How do you pair the headphones for the first time, and what step do people skip?

Hold the multifunction button until the LED flashes red and blue, then select "Runner 4" in the device's Bluetooth menu; skipping the long press leaves the headphones undiscoverable.

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