Koss

JBL

QZPRO

Synchros S300-A

Wired Headphone Specification

Wired Headphone Specification

Over Ear

Over Ear

Neodymium

Neodymium

NA

40 mm

32 Ohms

32 Ohms

90 dB/mW

115 dB/mW

40 Hz - 20000 Hz

10 Hz - 100,000Hz

NA

30 mW

Yes

NA

Grey

Black, White

3.5 mm Gold Plated Jack

3.5 mm Gold Plated Plug

1.2 m

1.2 m

NA

318 g

- 40-20,000 Hz frequency response offers a full range of deep bass and treble clarity for ultimate sound quality and reproduction
- Soft vinyl closed ear cushions create a tight seal around ears and reduce ambient noise
- Active noise reduction technology eliminates unwanted low-frequency noise, creating a peaceful listening environment
- Fully-collapsible design makes headphones perfect for travel
- Extra-soft, padded headband delivers lightweight comfort for extended listening sessions
- Approximately 30 hours of continuous play
- Includes a 4 foot, single-entry straight cord and two-prong airline adapter
- Covered under the Koss Stereo phones Limited Lifetime Warranty

- Detachable cable with Apple 3-button mic/remote cable
- JBL Professional Audio Sound with Pure Bass performance
- Collapsible design
- 1 three-button iOS remote/microphone cable or 1 three-button universal
- Cutting-edge design with steel headband and premium leather ear cushions