C300SI - Black - On-Ear Headphones - Hero C300SI - Black - On-Ear Headphones - Front C300SI - Black - On-Ear Headphones - Detailshot 1
C300SI - Black - On-Ear Headphones - Hero


The new JBL C300SI is a powerful, dynamic ultra-lightweight on-ear headphone. Its powerful drivers deliver the feel-it-in-your-bones bass response and legendary sound quality you expect from JBL. The ultra-light self-adjusting earcups offer a perfect fit for all-day comfort.

Product Specifications

General Specifications

Driver size 40mm
Frequency range 20-20kHz
Impedance 32 ohms
Driver sensitivity 94±5dB
Maximum power input 120mW
Rated power input 10mW
Cable length 1.2m
Plug 3.5mm (1/8")
Please consult the documents for in-depth specs

Documents & Downloads

What’s in the Box

  • 1 x pair JBL C300SI headphones
  • 1 x Warranty and safety card

Register your product

Do you own this product?
Register it here!

Register now

Can’t find what you’re looking for?

Call Us

Call Us

Talk to a product expert
Call us now at: (800) 336-4525

Mon - Fri: 9:00 am - 11:00 pm (EST)
Sat - Sun: 9:00 am - 5:00 pm (EST)

Chat with Us

Chat with Us

24/7 help with your order and information about our products

Start chat