Nady Systems Nady RacketBlaster QH50NC User Manual

Nady Systems Headphones

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Congratulations! You’ve purchased one of the finest
noise-canceling headphones available. Its innovative
technology eliminates unwanted outside noise and
enables your private listening pleasure even in noisy
environments. Please read this user guide carefully to
ensure the best performance of your headphones.


• State-of-the-art noise canceling circuit design elimi-

nates virtually all background ambient noise for total
quiet listening enjoyment

• Large 50mm drivers for unsurpassed audio — rich, powerful, with full frequency

response and punchy bass

• Full-size padded leatherette ear cups and headband for ultimate long-lasting

wearing comfort

• Adjustable headband for comfortable fit with all head sizes
• Separate battery compartment on cable for convenience — uses single AAA


• Operates as standard passive headphones when noise canceling circuitry is


RacketBlaster™ QH-50NC

Noise Canceling Stereo Headphones



Nady Systems, Inc. warrants to the original consumer purchaser that your unit is free from
any defects in material or workmanship for a period of 90 days from the date of purchase. If
any such defect is discovered within the warranty period, Nady Systems, Inc. will repair or
replace the unit free of charge, subject to verification of the defect or malfunction upon
delivery or shipping prepaid to Nady Systems.
Please do not return our product to the store where it was purchased. Nady Systems, Inc.
accepts the responsibility of keeping you a satisfied customer. This warranty does not apply
to defects or physical damage resulting from abuse, neglect, accident, improper repair,
alteration, or unreasonable use of the unit resulting in cracked or broken cases or parts, or
units damaged by excessive heat, and does not apply to batteries or damage caused by
leaking batteries. This warranty does not cover finish or appearance items nor items dam-
aged in shipment en route to Nady Systems Inc. for repair. You must include proof of date
and place of purchase (i.e. photocopy of your bill of sale) or we cannot be responsible for
repairs or replacement. If factory service is required, you must contact our Service
Department at 510/652-2411 for a return authorization (RA) number. Make sure the RA
number is clearly marked on the outside of the package. Nady Systems, Inc. will not repair
nor be held responsible for any units sent without proper identification and return address or
RA number clearly marked on the package. For service, ship units prepaid to: Nady
Systems, Inc., Service Department, 6701 Shellmound St., Emeryville, CA 94608.
Any applicable implied warranties including warranties of merchantability and fitness are
hereby limited to 90 days from date of purchase. Consequential or incidental damages
resulting from a breach of any applicable express or implied warranties are hereby exclud-
ed. This warranty is in lieu of all other agreements and warranties, general or special,
express or implied and no representative or person is authorized to assume for us any other
liability in connection with the sale or use of this Nady System's product. Some states do
not allow limitations on how long implied warranties last and do not allow exclusion of inci-
dental or consequential damages so the above limitations and exclusions may not apply to
you. This warranty gives you specific legal rights and you may also have other rights which
may vary from state to state.

QH50NC_userguide 2/5/07 10:01 AM Page 1