Betron EMR90 Foldable Wireless Bluetooth Headphones Over Ear with Microphone Mic Deep Bass - A Sound Experience Worth Every Penny

Published on May 26, 2023, 5:43 p.m.

Looking for some sick beats to bob your head to? Want that pounding bass to reverberate right into your eardrums? Well, bust out those dance moves and shake what your mama gave you with the Betron EMR90 Foldable Wireless Bluetooth Headphones!

These slick cans from Betron bring the noise, Bluetooth freedom, and convenience together in one stylish package. Let’s break down the deets on these bad boys.
 Betron EMR90 Foldable Wireless Headphones


Straight out the box, the Betron EMR90 Foldable Wireless Headphones exude a sleek, minimalist vibe with their all-black exterior. The protein leather ear cups envelop your ears in silky smooth comfort.

The adjustable padded headband flexes to fit nicely on your dome. When not in use, the ear cups swing inwards and the headphones fold up into a compact size for stashing in your backpack or purse. Take that bulky headphones!

Standout Features

  • Pump up the bass - 40mm drivers deliver booming, heart-thumping low end
  • Cut the cord - Bluetooth 5.0 pairs easily with devices up to 10m away
  • Travel-ready design - Lightweight folding design slips neatly into backpacks or bags
  • Long-lasting battery - Up to 12 hours of playtime per charge
  • Wired backup - 3.5mm audio cable lets you rock on in wired mode

 Betron EMR90 Foldable Wireless Headphones


The Betron EMR90 Foldable Wireless Headphones feature an over-ear closed-back design with folding hinges. The adjustable padded headband provides a secure yet comfortable fit. Angled protein leather ear cups create a nice seal for passive noise isolation. The matte black color scheme gives them an understated, minimalist look.


Setup is quick and simple with Bluetooth pairing. The intuitive on-earcup controls provide convenient access to volume, tracks, and calls. The folding design enables compact storage in bags or packs. Comfortable pads allow for long listening sessions without fatigue.

Build Quality

The Betron EMR90 Foldable Wireless Headphones have a durable plastic construction that feels solidly built. The headband and ear cups don’t creak or flex during use. While not indestructible, they can withstand normal daily use thanks to the sturdy materials.

Sound Quality

Powerful 40mm dynamic drivers deliver impactful bass along with nicely balanced mids and highs. Sound is crisp, clear, and fairly detailed for the price. Bass lovers will appreciate the thumping low-end punch. The sound profile is quite versatile across music genres.
 Betron EMR90 Foldable Wireless Headphones


Voice call quality is surprisingly good thanks to the built-in microphone. Voices sound natural and crisp on phone calls. Noise cancellation helps eliminate background sounds for improved call clarity.

Noise Isolation

The over-ear sealed design passively blocks external noise to an extent. While not active noise cancellation, the snug fit helps immerse you in your music and reduce ambient noise.

Battery Life

The Betron EMR90 Foldable Wireless Headphones provide around 12 hours of playback per 2 hour charge. Actual battery life depends on volume levels. The quick charging via Micro USB is convenient for topping up during the day.


Bluetooth 5.0 enables wireless pairing with smartphones, tablets, laptops, and other Bluetooth devices. Range is decent at up to 10 meters, but can vary based on environment. The included 3.5mm audio cable provides wired connectivity if needed.


On the right earcup, buttons allow control of power, volume, tracks, play/pause, and call answer/end. The controls are intuitive and responsive.

Water Resistance

The Betron EMR90 Foldable Wireless Headphones have no official water resistance rating. They should be able to withstand light rain or sweat, but avoid submerging them in water.

 Betron EMR90 Foldable Wireless Headphones

Usage Scenarios

The Betron EMR90 headphones are perfect for:

  • Commutes - Drown out the drone of trains and planes while traveling in comfort
  • Workouts - High energy gym sessions demand pumping basslines to push you through
  • Travel - Compact folding design takes up less space when packing bags
  • Work calls - Use the built-in microphone for conference and video calls
  • Relaxing - Lose yourself in your favorite playlists while chilling at home

User Feedback Analysis

Having scoured numerous in-depth customer evaluations, it’s clear the Betron EMR90 Foldable Wireless Headphones evoke quite positive experiences overall. Here’s a deeper dive into the insightful impressions shared by discerning audiophiles and everyday listeners alike:

A common refrain resounds - the Betron EMR90 Foldable Wireless Headphones’s bass bonanza receives wide praise. Reviewers across forums and retailers extol the headphones’ ability to rattle your brain with hard-hitting low frequencies that vibrate with subwoofer-like rumble. According to enthused buyers, the expansive soundstage and 40mm drivers synergize to reproduce intense, full-bodied bass that brings dance tracks to life.

Beyond pulsating bass, reviewers describe sparkling highs and clear-cut mids that make vocals really shine. The sonic profile exhibits a vibrant, lively character with hi-fi sound belying the Betron EMR90 Foldable Wireless Headphones’s approachable price tag.

Comfort stands out as another high point repeatedly mentioned. The protein leather ear cups and padded headband enable fatigue-free listening for hours on end according to users. Ergonomic design, adjustable fit, and lightweight construction coalesce to make the Betron EMR90 Foldable Wireless Headphones disappear on your head.

For all the benefits conferred, a few shortcomings round out the experience. Short wireless range disappoints some, as dropouts and interference arise past 10 meters. Battery life could be longer - expect recharges needed after 8 to 10 hours versus the stated 12. Still, most agree the pros handily outweigh the cons given the bargain price point.

In summary, real-world impressions indicate Betron hit the sweet spot with the Betron EMR90 Foldable Wireless Headphones. Bass-heavy tunes thrive on these cans. For everyday portability at an entry-level cost, reviewers say listeners will love these overachieving Bluetooth headphones.


  • Deep punchy bass
  • Great value and price
  • Foldable and portable
  • Wired functionality as backup
  • Comfortable ear cups


  • Mediocre battery life
  • Limited wireless range
  • Lacks advanced features like ANC


Priced at under $30, the Betron EMR90 Foldable Wireless Headphones deliver tremendous bang for your buck. The audio punches well above their weight with impactful bass and surprising clarity. Though not flawless, the flexible functionality and extras like a wired audio cable make these headphones a steal.

 Betron EMR90 Foldable Wireless Headphones

In summary

With pulse-pounding audio, versatile connectivity options, and a travel-ready design, the Betron EMR90 headphones check all the boxes.

Bass lovers will dig the booming low end. Audiophiles will appreciate the surprisingly balanced and detailed sound. And anyone will love the freedom of cutting the cord with Bluetooth connectivity.

So if you’re craving crisp beats, the Betron EMR90 Foldable Wireless Headphones has your back! Slip these slick headphones on, find your groove, and let the music move you.


  • Driver: 40mm dynamic driver
  • Bluetooth version: 5.0
  • Wireless range: up to 10m
  • Battery life: up to 12 hrs
  • Charging time: 2 hrs
  • Weight: 240 grams
  • Impedance: unknown
  • Frequency response range: unknown

What’s in the Box

  • Betron EMR90 Bluetooth headphones
  • Carrying pouch
  • Micro USB charging cable
  • 3.5mm auxiliary cable
  • User manual

Getting Started

  1. Charge the headphones fully before first use
  2. Power on and enter Bluetooth pairing mode
  3. On your phone, tablet, etc, turn on Bluetooth and select “Betron EMR90” to connect
  4. Use the inline controls on the right earcup to adjust volume, skip tracks, and take calls
  5. Recharge as needed via Micro USB when battery runs low
  6. Optionally use the 3.5mm cable for wired listening

Enjoy your new wireless listening freedom with the Betron EMR90!

Betron EMR90 Foldable Wireless Headphones