Boult Z40 Ultra TWS Earbuds

Boult Z40 Ultra

Gaming Headphones Headphones Reviews Wireless Wireless Gaming Headphones Wireless In-Ear Wireless TWS Earbud

Boult Z40 Ultra TWS Earbuds





  • Attractive Look.
  • Active Noise Cancellation.
  • Dual Pairing Support.
  • Quad mic ENC.
  • 3 EQ Modes.


  • Uncomfortable Fit For Some Users.
  • Battery mAh Not Known.
  • Battery Life Could Be Better.

Boult Audio has launched its latest earbuds in the country called Z40 Ultra, an upgraded version of Boult Z40. They are designed to deliver an immersive audio experience. The earbuds come with exciting specifications. In this earphones review, we take a close look at its features and specifications.

Design and Fit

Boult Z40 Ultra TWS earbuds feature an in-ear style with a stem. They have a dual-tone design with sensitive touch controls to offer you an enhanced user experience. You can manage music playback, calls, volume, EQ modes and virtual assistants with just a few taps. They are IPX5 rated for splash resistance. The earbuds are housed in a Pebble shaped charging case.

Boult Z40 Ultra TWS Earbuds

Audio Quality

They are backed by 10mm drivers and offer you an immersive audio experience with its BoomX technology. Thanks to the quad mic AI-ENC, you enjoy clear calling experience. They are capable of eliminating environmental noise during your calls up to 32dB. These newly launched earbuds feature a 45ms low latency mode for seamless audio streaming. One of the attractive features of these earbuds is that they come with Dual Stream DSP and Sonic Core Dynamic chip for hardware-accelerated audio processing.

Read Our Review: Wired In-Ear Headphones Reviews
Battery Life and Connectivity

With Boult Z40 Ultra TWS Earbuds, you enjoy up to 100 hours of total playtime on a single charge. For connectivity, they support Bluetooth v5.3 with Blink and Pair technology. You can also connect them to two devices simultaneously.

Boult Z40 Ultra TWS Earbuds

Price and Availability

The earphones are available in metallic, beige and black color options. You can purchase them online for ₹1,799/- at Amazon.

A quick look at specifications of Boult Z40 Ultra TWS Earbuds:
Specifications Details
Type In-Ear TWS Earbuds
Driver Units 10 mm
Driver Type BoomX Technology Drivers
Deep Bass Yes
Frequency Response 20 Hz ~ 20 kHz
Monaural Yes
Latency 45 ms Ultra Low-Latency with Combat Gaming Mode
Multi Device Pairing Yes
Microphone Yes, ZEN Quad Mic with ENC
Multifunction Touch Control Yes
Voice Assistant Yes, Siri & Google Assistant
Bluetooth Yes, v5.3
Wireless Range 10 m
Noise Cancelling Yes, Active Noise Cancellation
Water Resistant Yes, IPX5
Sweat Proof Yes
Compatibility Android


Battery Not Known
Battery Life Up To 100 Hours (With Charging Case)
Color Metallic



What’s in the box Z40 Ultra TWS Earbuds

Charging Case

Charging Cable

User Manual

Price ₹4,999/-
Available at logo

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Boult Audio Logo (New)

Let us know your views about them in the comments section below.


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