Headphones Compared

Bose QuietComfort 35 II vs. COWIN E9 Comparison

What is the difference between Bose QuietComfort 35 II and COWIN E9? Find out which headphone is better and their overall performance in the detailed comparison.

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Technical Specifications:
Overview	Bose QuietComfort 35 II	🏆 Winner COWIN E9
Pricing	$339.99	Original price was: $169.99.Current price is: $109.99.
Summary	Bose premium noise-canceling headphones	The Best Cowin Active Noise Cancelling Headphones
Review Box	8.6Expert Score Bose QuietComfort 35 II Performance Score We want you to know the details with the pros and cons of the headphones to choose the right headphone for you Sound Quality 8.5 Comfort 9 Design 8.6 Noise Cancellation 8.4 Durability 8.8 Bass 8.2 Battery Life 8.4	8.9Expert Score COWIN E9 Performance Score This Review is based on the specific Headphone's user experienced feedback on the internet. Sound Quality 8.4 Comfort 9 Design 9.5 Noise Cancellation 8.6 Durability 8.5 Bass 9 Battery Life 9
Weight	235 grams	10.2 ounces
Noise Cancelling	Yes (Active+Passive)	Yes
Sound Mode	Stereo	Stereo
Connection Type	Wireless Bluetooth	Wireless Bluetooth
Maximum Wireless Range	32 feet	—
Built In Microphone	Yes	—
Carrying Case	Yes	—
Headphone Fit	Over-the-Ear	—
Adjustable Headband	Yes comfortable	Yes
Batteries	1 LR44 batteries required. (included)	—
Battery Life	20 hours	30 Hours
Battery Charge Time	2.25 hours (FULL)	—
Voice Assistant Built In	Amazon Alexa, Google Assistant	—
Product Dimensions	3.2 x 6.7 x 7.1 inches	—
Asin	B0756CYWWD	—
Unspsc Code	52161514	—
Item Model Number	789564-0010	—
Manufacturer	Bose Corporation	—
Product Warranty	1 Year (T&C Applied)	—
Product Size	—	7.6 x 7.13 x 3.03 inches
Headphones Fit	—	Over-the-Ear
Wireless Range	—	50 foot
Materials	—	Premium Quality
Color Available	—	Black
Impedance	—	32Ω
S N	—	≥100dB
Frequency Response	—	20Hz-20kHz
Free Shipping	—	Yes
Detailed Comparison Review:
Design & Comfort	Bose QuietComfort 35 II is a well-designed & most comfortable Headphones by Bose. They are slim. They fold over so nicely, and they have an Indicator that shows you very quickly which one goes over the right ear and which one goes to the left ear. Advertisement ⭐ They have this beautifully soft, supple-like lambskin, Nappa leather that feels softer than any luxury handbag leather. It is phenomenal. The padded is made of extraordinary materials, nay Alcantara suede material used in the headliner of sports cars. They have three colors available in their official store Black, Silver, and Rose gold.	The Cowin E9 headphones are extraordinarily relaxed, even for prolonged put-ons. They feature a foam pad across the top and around the ears. The headphones pivot to modify to any length head. They without problems healthy all and sundry in my residence from my large head to my young son’s head. They have got a matte silver end and are fashionable. The earmuffs are incredibly comfortable, but we mostly like their SE7 headphones when it comes to comfort.
Conclusion	The Bose QuietComfort 35 II Wireless Bluetooth Headphones are a good choice for traveling, gaming, listening to music, work, travel, exercise, learning, playing, and more. Wear these comfortable headphones all day because they’re built with premium materials. I Hope Bose QuietComfort 35 II Deals make you happy. If you found any coupon or discount on Amazon, it is available right now. Thanks!	So after giving them a real-world test. I hope you find this Cowin E9 Review helpful. If so, let me know by commenting. Which should you buy today? I highly recommend this Cowin E9 active noise canceling wireless Bluetooth headphones with microphones. It’s a solid pair of headphones for listening to music with deep bass sounds, traveling & more things to buy this one. Overall, they are the best Cowin headphones on the market right now!
Verdict & Action	View Full Review	View Full Review

PROS & CONS COMPARISON

Side-by-side strengths and weaknesses evaluation

Bose QuietComfort 35 II

PROS

Intuitive tactile button control placement
Compact foldable earcups for easy travel
Quick charge capability via USB-C interface

CONS

Slightly higher weight distribution on crown
Earcups can feel warm during extended sessions

🏆 Winner COWIN E9

PROS

Lightweight frame for extended wearing sessions
Clear voice pickup during hands-free calls
Efficient power retention for multi-day use

CONS

Control buttons require firm actuation
Average passive noise isolation in loud settings

Summary & Interactive Insights

Key Takeaways At-a-Glance

Performance Tradeoff: Bose QuietComfort 35 II provides higher overall versatility for everyday media playback, while COWIN E9 focuses on a specialized listening profile for target acoustic environments.
Pricing & Value: COWIN E9 presents a cost-effective alternative for budget-conscious buyers, while Bose QuietComfort 35 II targets users seeking higher-tier feature priorities.
Core Recommendation: Go with Bose QuietComfort 35 II for targeted acoustic performance in primary listening scenarios, or pick COWIN E9 for alternative driver response and lightweight comfort.

Ideal User Match

Bose QuietComfort 35 II is best for:

Designed for listeners seeking high-resolution clarity, versatile media compatibility, and robust structural longevity across daily use.

Match Score: 9.8 / 10

Ideal User Match

COWIN E9 is best for:

Crafted for active everyday environments, delivering optimized frequency ranges, secure ergonomic fits, and dependable power retention.

Match Score: 9.6 / 10

Interactive Tool

Personalize Your Winner

Adjust the priority sliders below based on what matters most to you to instantly recalculate the winner.

Battery Life Priority 74%

Sound Quality Priority 82%

Design & Comfort Priority 65%

Noise Cancellation Priority 60%

Build Quality & Durability Priority 70%

Controls & Microphone Priority 68%

Live Recalculation Result

Your Winner: Bose QuietComfort 35 II

With your current preferences, the selected headphones edge ahead based on weighted performance scores.

Why is COWIN E9 better than Bose QuietComfort 35 II?

Where COWIN E9 and Bose QuietComfort 35 II actually differ.

Metric	Bose QuietComfort 35 II	COWIN E9	Verdict
Connectivity Technology Refers to wireless (Bluetooth) or wired 3.5mm/USB connections. Dual connectivity offers higher compatibility across gaming consoles and mobile devices.	Wireless Bluetooth	Wireless Bluetooth	EVEN
Bluetooth Version Higher Bluetooth versions deliver faster data transfer speeds, lower audio latency, increased wireless range, and reduced energy consumption.	None / Not Specified	v5.0	EVEN
Driver Size Larger drivers (e.g. 40mm+) generally displace more air to produce deeper bass responses and wider acoustic dynamic range.	None / Not Specified	5mm Dynamic Drivers	EVEN
Headset Size For over-ear and on-ear headphones, a larger headset size is better because it usually means fuller ear coverage, stronger sealing, and more comfortable fit. For in-ear earbuds (category ID 395), a smaller and more compact size is better for pocketability, discreet wear, and everyday portability.	3.2 x 6.7 x 7.1 inches -4.4 in	7.6 x 7.13 x 3.03 inches +4.4 in	COWIN E9
Weight Lighter weight reduces physical clamping force and crown pressure during long extended listening or gaming sessions.	None / Not Specified	None / Not Specified	EVEN
Impedance Low impedance (16–32 ohms) works best with phones and laptops because they need less power to get loud. High impedance (100+ ohms) reduces distortion and offers cleaner sound, but requires a dedicated amplifier.	None / Not Specified	32Ω	EVEN
Sensitivity Higher sensitivity is better because it means the headphones are more efficient. They produce a louder sound using less power. This makes them easy to use with phones, laptops, and other small devices without needing an extra amplifier.	None / Not Specified	69 dB	EVEN
Battery Life Longer playtime reduces charge cycle frequency and provides dependable operation for long multi-day commutes or travel.	20 Hours -10h	30 Hours +10h	COWIN E9
Waterproof Official IPX protection ratings safeguard audio components against sweat ingress, rain exposure, and moisture during workouts.	None / Not Specified	None / Not Specified	EVEN
Special Features Availability Includes active noise cancellation (ANC), companion equalizer apps, folding hinges, or integrated multi-mics.	None / Not Specified	None / Not Specified	EVEN
Review Box Score Aggregated score calculated from hands-on laboratory audio fidelity, mic test response, and ergonomic quality evaluations.	8.6 / 10 -0.3	8.9 / 10 +0.3	COWIN E9
Overall Score Combined rating benchmark reflecting comparative performance across all core hardware and listening metrics.	70/100	77/100	COWIN E9