Name: BT540i
Brand: Koss
SKU: 12565
Rating: 4.1 (27 reviews)

4.1

based on all reviews

Consumer ratings:

4.4 / 5

Isolation is good for a mobile headphone
sound quality and extremely easy pairing
lows are smooth

connecting via NFC was a little difficult
harshness and bass bloat
lack of true lossless sound quality

Impedance: 32 Ω
Sensitivity: , 100 dB
Frequency range: 10, 25000 Hz
Acoustic design: Closed
Sound output: Stereo
Style: Over-Ear
Connectivity technology: Wireless

Koss BT540i - Pros & Cons

Isolation is good for a mobile headphone
sound quality and extremely easy pairing
lows are smooth
mids are robust
comfortable and light to wear
produces clean crisp highs
robust mids and smooth lows
Very comfortable and lightweight

connecting via NFC was a little difficult
harshness and bass bloat
lack of true lossless sound quality
sound quality changes (sometimes dramatically) when connected
It was very distant and tinny sounding
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micro USB charging cable and a hard case
too much pizazz in place of an absence of performance
tough to beat these Koss headphones
finicky NFC-connectivity

Koss BT540i - Technical Overview

	Poor	Average	Good	Excellent
Impedance	32 Ω Best: Stax SR-L500 Impedance: 145000 Ω
Weight	204 g Best: Cyber Acoustics ACM-7002 Weight: 0.11 g

Koss - Video Reviews (8)

Designing the Koss BT540i Wireless Bluetooth® Headphone

Koss BT540i Headphones REVIEW | Best $120 Headphones

Koss BT540i - Full Specifications

Sound output	Stereo
Style	Over-Ear
Connectivity technology	Wireless
Headset (integrated/enclosed microphone)	yes

Weight	7.2 oz

Microphone type	Built-in microphone

Buttons	Answer button Volume
NFC	yes
Carrying case	yes

Colour of product	Black
Acoustic design	Closed
Attachment type	Headband
Category	Audiophile
Noise isolating	yes

Impedance	32.0 Ω
Sensitivity	< 100
Frequency range	10 - 25000
Driver technology	Dynamic

Inputs supported	3.5mm Bluetooth
Cable length	1.37
Bluetooth codec	aptX
Wireless connection	Bluetooth
Type of connector	3.5mm
USB	yes
Detachable cable	yes

Battery operated	yes
Battery technology	Lithium-Ion
Battery life	8.0 h
Talk time	8.0 h
Charging via USB	yes

Koss BT540i - Q&A

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Koss BT540i Koss - Editorial Reviews (4)

4.0

Based on 4 reviews

Koss BT540i KOSS BT540i: Bluetooth Wireless Mobility

Headfonia Reviews

Published: 23.10.2014

KOSS BT540i: Bluetooth Wireless Mobility

KOSS BT540i: Review by Headfonia - The Headphone Enthusiast's Website

TechRadar

Published: 30.01.2015

Koss BT540i review

4.0

High-performance Bluetooth headphones for music lovers looking for a bargain

Koss BT540i Bluetooth Headphone/Headset Survey Review - Koss BT540i

Stereophile.com

Published: 06.12.2014

Bluetooth Headphone/Headset Survey Review - Koss BT540i

Koss BT540i ($199) Looking very much like their ProDJ100, the Koss BT540i is...well, not very stylish. Val Kolton of V-Moda with his "no circles or plastic" mantra would cringe. Circular ear capsules, circular pads, and, but for the headband sliders and a few bits here or there, plastic and pleather everywhere. Yeah, this is a very plain looking headphone.