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No Sew

No Sew Purity Air Open Ear Headphones Black 15 mm 18 ohm 6 h 10 m

SKU CH-C9FA-91B17

Open-ear air conduction headphones with 15 mm drivers, 18 ohm impedance, 6 hour battery life and 10 metre Bluetooth range

  • Driver size15 mm
  • Frequency range20000 Hz
  • Headphone styleOpen Ear
  • Impedance18 ohms
  • Power supplyBattery, false
  • ConnectionNo Jack
  • Open ear design keeps you aware of surroundings
  • 15 mm drivers deliver detailed audio
  • Dual mics with environmental noise cancellation
  • IPX5 sweat resistance suits active use
  • 6 h battery life with 10 m Bluetooth range

Open-ear headphones for active use

These headphones use air conduction technology so sound reaches the ear without blocking the canal. They are built for runners, cyclists and commuters who need to hear traffic and conversation while listening. The IPX5 rating protects against sweat and rain during workouts. A secure behind-the-neck fit keeps them stable through movement.

15 mm drivers and 18 ohm impedance

Each earpiece houses a 15 mm driver that produces a frequency response up to 20000 hertz. The 18 ohm impedance matches the output of typical phone and laptop Bluetooth sources. Environmental noise cancellation uses dual microphones to suppress background sound during calls.

Six hours of playback from the built-in battery

A full charge delivers 6 hours of continuous listening at moderate volume. The magnetic charging cable attaches to the right speaker and shows solid red while charging, turning solid blue when complete. Bluetooth range extends to 10 meters so the source device can stay in a bag or on a handlebar.

How it compares

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

Price $22.99
Cheaper than about 55% of the 7,078 comparable items (median $25.99).

Specifications

Product
Brand namePurity
Model namePurity Open Ear Headphone, UU000136
Part numberUU000136
Product typeOn-Ear
Product colorBlack/Black
Performance
Supported distance10 m
Audio & video
Driver size15 mm
Frequency range20000 Hz
Headphone styleOpen Ear
Impedance18 ohms
Wearing styleOpen ear
Noise cancellationEnvironmental noise cancellation
Mic impedance18 ohm
Mic frequency response20000 Hz
Connectivity
Wireless technologyBluetooth
Ports & slots
ConnectionNo Jack
Power
Power supplyBattery, false
Battery pack6 h
Run time6 h
Built-in batteryBattery
Size & build
Cord lengthUser Manual
In the box
In the boxWireless Headphone, USB-A Charging Cable, User Manual

Questions about this item

What does the 15 mm driver size mean for everyday listening?

The 15 mm drivers produce detailed audio while the open-ear design keeps your ears unblocked so you hear surroundings naturally.

How does the Bluetooth connection perform at the 10 metre range?

The wireless link stays stable up to 10 metres, letting you move freely during workouts or calls without drop-outs.

How do the earbuds stay in place during vigorous exercise?

They hook behind the neck with speakers that cling to each ear, and the IPX5 rating handles sweat and rain during sport.

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