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Green open-ear earphones with ear-hook design and charging case

allentian

allentian K23 TWS Hanging Ear Earphones Air Conduction Bluetooth Headset Green

SKU CH-GX4Z-6J3R1

Open-ear air conduction headphones with Bluetooth 5.3, 14-hour playback, 89% sound-leakage reduction and CVC 8.0 call noise reduction

  • Product colorGreen
  • Open-ear design avoids in-ear pressure for comfortable wear
  • Bluetooth 5.3 delivers high-speed, stable audio and video transmission
  • HIFI sound with digital enhancement restores natural scene audio
  • Pulse TD3.0 adaptive directional beam cuts 89% sound leakage
  • CVC8.0 noise reduction improves call clarity in noisy environments

Open-Ear Comfort for Daily Use

The allentian K23 uses an open binaural listening method that avoids the squeezing pain caused by in-ear headphones on the ear canal, making it more comfortable to wear for long periods. This design suits listeners who want to stay aware of their surroundings while enjoying audio. Buyers who need full noise isolation or deep bass pressure from a sealed fit will not find that here.

Bluetooth 5.3 and Adaptive Sound Delivery

Bluetooth 5.3 technology ensures high-speed and stable transmission for audio and video. Pulse TD3.0 adaptive directional sound transmission detects the shape of the ear canal and automatically adjusts the propagation angle of the integrated sound beam, ensuring sound is efficiently transmitted while effectively reducing 89% of sound leakage. Intelligent CVC8.0 noise reduction technology improves call quality by reducing environmental noise interference. Touch controls provide quick adjustment.

Lightweight Build with Type-C Charging

Each earphone weighs 11.5g and the whole unit weighs 93g, keeping the hanging-ear fit light throughout the day. The headphones carry a 100mAh battery and the charging case holds 450mAh, delivering about 14 hours of music time at medium volume. A Type-C charging interface connects the case for convenient replenishment. Users who require longer continuous playtime without the case will need to plan for recharging breaks.

How it compares

Measured against everything we stock in Smartwatches & Wearables, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 90% of the 2,527 comparable items (median $44.99).

Specifications

Product
Product colorGreen

Questions about this item

How often will the 100 mAh earbud batteries and 450 mAh case need recharging during regular use?

Each earbud holds 100 mAh and the case holds 450 mAh, delivering roughly 14 hours of music playback at medium volume before the case itself requires a top-up via its Type-C port.

What limits continuous listening time before the earbuds must return to the case?

The earbuds provide about 14 hours of music playback at medium volume on a single charge, so battery endurance is the first limit reached during extended sessions.

How much heat or fan noise do the earbuds produce when worn all day?

The open air-conduction design has no drivers inside the ear canal and no active cooling, so the earbuds generate negligible heat and zero fan noise during all-day wear.

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