400-M - Headphones JPL - Free user manual and instructions

Product Type	Headphones
Brand	JPL
Model	400-M
Color	Black (typical)
Form Factor	Over-ear
Driver Size	40 mm (estimated)
Impedance	32 Ω (typical)
Frequency Response	20 Hz – 20 kHz
Connectivity	Wired, 3.5 mm jack
Cable Length	1.2 m (approx.)
Microphone	Yes, built-in
Volume Control	On cable (inline)
Dimensions (folded)	200 x 180 x 80 mm (approx.)
Weight	200 g (approx.)
Compatibility	Smartphones, tablets, PCs
Ear Cushions	Soft padded, replaceable
Headband	Adjustable
Cleaning	Wipe with dry cloth; avoid liquids
Storage	Keep in a dry place; avoid extreme temperatures
Spare Parts	Ear pads and cable available
Repairability	Basic repairs possible; professional service advised
Safety	Do not use at high volume for extended periods

Frequently Asked Questions - 400-M JPL

How do I connect the JPL 400-M headphones to my device?

Plug the 3.5 mm audio jack into the headphone port of your device. Ensure the connection is secure.

Why is there no sound from one ear?

Check if the audio jack is fully inserted. Inspect the cable for damage. If the issue persists, try a different device to isolate the problem.

Can I use these headphones for gaming?

Yes, they are compatible with PCs, consoles, and mobile devices with a 3.5 mm audio jack. The built-in microphone allows for in-game chat.

How do I clean my JPL 400-M headphones?

Use a soft, dry cloth to wipe the ear cups and headband. Avoid using liquids or abrasive cleaners. For deep cleaning, remove ear pads and clean gently.

Are the ear pads replaceable?

Yes, the ear pads are removable and replaceable. Contact JPL support or check online for compatible replacement parts.

Does the microphone work with all devices?

The microphone works with devices that support a TRRS (4-pole) 3.5 mm jack. Some computers may require a splitter for separate audio and mic connections.

What is the warranty period for JPL 400-M headphones?

The standard warranty period is typically 1 year from the date of purchase. Check your user manual or contact JPL for specific terms.

Can I use these headphones with an airplane adapter?

Yes, you can use a standard 3.5 mm to dual-plug adapter (not included) to connect to in-flight entertainment systems.

How do I adjust the headband for a better fit?

Gently slide the earcups up or down along the headband until the headphones sit comfortably on your ears without excessive pressure.

Why is the microphone not picking up my voice?

Ensure the microphone is not muted and that the device's audio input is set to the headphones. Check the connection and try a different device.

USER MANUAL 400-M JPL

Your JPL Telecom product has been carefully manufactured and 100% tested using high quality assured components. It is guaranteed against faulty workmanship and materials for a period of 24 months from the date of purchase. In the unlikely event that a failure should occur, please contact the JPL Telecom dealer from which you purchased this product or visit www.jpltele.com and follow our product returns procedure. You will be given a RMA number and instructions on how to return your headset.

Further help can be found on-line at www.jpltele.com on our FAQs page.

Note: Removing the factory-applied warranty label on the in-line wire will void the warranty. Specifically exempt from warranty are limited-life consumable components subject to normal wear and tear, such as microphone windscreens, ear cushions and other accessories. Your statutory rights under common law are in no way affected by this guarantee. The warranty does not cover cosmetic damage or damage due to misuse, abuse, negligence, acts of nature, accident, disassembling or modification of, or to any part of, the product. The warranty does not cover damage due to improper operation, maintenance or installation, or attempted repair by anyone other than JPL Telecom. Any unauthorised repairs will void this warranty.

LIMITED WARRANTY

Consequential and incidental damages, including without limitation, loss of property and those arising from breach of any express or implied warranty, are not the responsibility of JPL Telecom and to the extent permitted by law, are excluded.

In accordance with its policy of progressive product design, JPL Telecom reserves the right to change product specifications without prior notice.

* Repair or replacement is at the discretion of the manufacturer.

REGISTERED ADDRESS

UK Office: JPL Telecom Limited

Unit 1, Church Close Business Park, Church Close, Todber, Sturminster Newton, Dorset, DT10 1JH England

USA Office: JPL Telecom Holdings LLC

445 W Merritt Ave, Merritt Island, FL 32953, USA

Registered in England No. 5250754

(NB. For product returns, please follow instructions and returns department address provided on our website. Returned products received at the registered addresses are likely to be returned to sender).

www.jpltele.com

2014/30/EU

USB Headset

Quick Start Guide

www.jpltele.com

Quick Start Guide

For full operating instructions please visit www.jpltele.com