Sony WF-LS900N TWS Earbuds, 5mm Driver

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Build Aspect

Sony LinkBuds WF-LS900N are designed to be full day wearable pair of earbuds. They are remarkably light in weight and have a fantastic unobtrusive fit that wont bother you for extended duration. However as a side-effect of light weight build the entire construct is from plastic which takes away from the overall premium effect. Having said that it goes without saying that the earbuds are finely finished with fantastic matte finish which is hard to fault. Similarly the charging case is a very pocket friendly one and is able to charge the earbuds fully around about 2 times or so. The battery life is rated for 6 hours of music playback. Furthermore total playback time can be extended to nearly 20 hours courtesy of the charging case.

Performance Aspect

These earbuds feature a 5mm driver, which helps keep the size of the earbuds small and the weight light. But does it affect the sound quality or depth of bass? Well primarily these earbuds are more forward sounding than would otherwise be needed. That is the highs are well extended and the mid range too much in the face. Maybe its that or conversely it can be said that the bass or lows are lacking. A little bump in the bass bands using the EQ app and things take a turn for the good. The sound gets melodious and fulfilling from intolerable sorts. Lows give the tracks good oomph and much needed depth to make them sound crisp and immersive. On the call quality front the audio is respectable both ways a leaves little room for improvement as far as TWS design of earbuds go. The ANC now, it works incredibly to filter noises or to let ambient sounds in depending on the mode selected. While adaptive sound can be termed hit or miss, we found it a miss for most part and a minor irritant rather. All in all these are a good pair of earphones and best bought when on discount or sale.

Also: Click here to view a Top-Rated pair of TWS earbuds from Sony on Amazon.


Feather light weight.
Comfortable, snug and flush fit.
Fantastic ANC feature set.


Needs EQ to sound any good.
Adaptive ANC is not upto the mark.
Looks are monotonous.

Brand Sony
Model Name WF-LS900N
Colour White, Black & Beige
Form Factor In Ear
Connector Type Wireless

About this item

  • The world’s smallest and lightest, noise cancelling, Hi-Res Truly wireless headphones* Disclaimer in description
  • These Sony headphones give you the best of both worlds: natural ambient sound when you want to interact with your world high-quality noise cancelling when you need to focus.
  • Enjoy High-Resolution Audio Wireless and crystal-clear phone calls on these Bluetooth headphones.
  • Smart features deliver an effortless listening experience! Speak-to-Chat will automatically pause the music when you start a conversation, the earbuds include intuitive touch control and more.
  • Up to 20hr battery life and IPX4 water resistant, Bluetooth effective range 10m
  • Included components: WF-LS900N, Charging Case, USB-C cable, arc supporters, operating instructions, reference guide
  • Multi-point connection lets connect two devices at once
  • IPX4 water resistant protection against the sweat and splashes



Battery Charge Method

USB Charging (with case)

Battery Life (continuous music playback time) (Buds+Case)

Max. 20 hrs (6 hrs+14 hrs)

Battery Charge Time (Buds)

Approx. 2.0 hrs

Bluetooth® Specification

Bluetooth® version

Bluetooth Specification Version 5.2

Effective Range

32.81 ft


2.4 GHz band (2.4000–2.4835 GHz)



Supported Audio Format(s)


Supported Content Protection


Charging Case

Battery Charge Time

Approx. 3 hrs (USB charging)


Approx. 1.69 x 2.36 x 1.09″


Approx. 1.23 oz

General Features

Driver Unit


Frequency Response (Bluetooth® Communication)

20 Hz–20,000 Hz (44.1 kHz sampling) / 20 Hz–40,000 Hz (LDAC 96 kHz sampling 990 kbps)

Headphone Type

Closed, dynamic


High-power neodymium magnets


Yes (IPX4)

DSEE Extreme


Noise Canceling

Ambient Sound Mode


Quick Attention


Size & Weight

Weight (Buds)

Approx. 0.17 oz x2


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