JVC HANC250 English, Battery Insertion, The Noise Canceling Function, Using The Headphones

English

Thank you for purchasing this JVC product.

Before you begin operating this unit, please read the operating instructions carefully to be sure you get the best possible performance. If you have any questions, consult your JVC dealer.

CAUTION

Hearing Comfort and Well-Being

•Do not play your personal audio at a high volume. Hearing experts advise against continuous extended play.

•If you experience a ringing in your ears, reduce volume or discontinue use.

Traffic Safety

•Do not use while operating a motorized vehicle. It may create a traffic hazard and is illegal in many areas.

•You should use extreme caution or temporarily discontinue use in potentially hazardous situations.

•Even though your headphones are of the open-air type designed to let you hear outside sounds, don’t turn up the volume so high that you can’t hear what’s around you.

1.For your safety...

•Do not disassemble or modify the headphones.

•Do not allow inflammable, water or metallic objects to enter the headphones.

•If you find skin problems where the headphones are in contact with your skin, stop using the headphones; otherwise, it may cause further inflammation or irritation of the skin.

•When the air is dry such as in winter, you may feel a static shock when using the headphones.

•If you get sick while using the headphones, stop using them right away.

•Be sure that your hair or any other objects do not get caught in the headband slider (adjuster) when adjusting the headband.

2.Avoid using the headphones…

•in places subject to excessive humidity or dust

•in places subject to extremely high (over 40°C or 104°F) or low (under 0°C or 32°F) temperatures

3.DO NOT leave the headphones…

•exposed to direct sunlight

•near a heater

4.To protect the headphones, DO NOT…

•allow them to get wet

•shake them or drop them onto hard objects

☐Be careful not to apply power that exceeds the headphones’ input capacity. This may result in sound distortion and could damage the oscillation board.

☐Grasp and pull the plug itself to disconnect the headphones. Do not pull out using the cord.

☐When using the headphones near a cellular phone, noise may occur. Keep the headphones away from the cellular phone.

☐The ear pads will wear out earlier than the other parts, even in normal use or in normal storage due to the characteristics of the material used.

☐When covering the headphones with an object, the noise-canceling function may not work well or a howling noise may occur. In this case, take off the object which is covering the headphones.

BATTERY INSERTION

The battery should be changed when the operation indicator fades or does not turn on. The noise-canceling function becomes less effective as the battery wears down so be sure to replace the battery as necessary to maintain the proper performance of the headphones.

Notes Misuse of the battery could result in leakage. This could cause a fire or an explosion. To prevent this, pay special attention to the following points:

•Be sure to insert the battery with the positive ª and negative · polarities correctly positioned.

•Do not heat, disassemble or short-circuit battery and never dispose of it by throwing it in a fire.

•Read the caution on the battery before use.

•Be sure not to change the battery in a place where there is a lot of dust.

•Be sure to remove the battery if you are not going to use the headphones for a long time.

THE NOISE CANCELING FUNCTION

The active noise-canceling function does not reduce high frequency noise. It cancels out noise which mainly consists of low frequencies, such as that from vehicles, air conditioners, etc.

USING THE HEADPHONES

To activate the noise-canceling function

Power switch Operation indicator

•You can listen to the audio source even if you do not turn on the headphones, but the noise-canceling function will not work.

•When using the headphones only for noise reduction, you do not need to connect the supplied cord.

Use the supplied cord only with these headphones.

FOLDING AND STORING

R	L
Right	Left

Turn off the power before replacing the battery.

12

Put off the earpad.

Right housing

34

UP

UP

Insert the · end first, then push the battery in.

Push

SPECIFICATIONS

Frequency response	8 Hz – 24, 000 Hz (power — ON)
Noise reduction	More than 16.5 dB at 150 Hz
Sensitivity	102 dB/1 mW (power — ON)
	100 dB/1 mW (power — OFF)
Input impedance	40 Ω (power — ON), 96 Ω (power — OFF)
Driver unit	ϕ40 mm
Power supply	AAA battery (DC 1.5 V) x 1
Battery life	Approx. 20 hours* (using Manganese AAA battery)
	Approx. 50 hours* (using Alkaline AAA battery)
	* Varies depending on operating conditions.
	* Without ambient noise.
Cord length**	1.2 m (3.9 ft) (detachable)
Mass	150 g (5.30 oz) (incl. battery)
	140 g (4.94 oz) (excl. battery)
Accessories	Carrying case x 1, Manganese AAA battery (R03) x 1,
	Cord**x 1, Dual plug adapter (for in-flight use) x 1,
	Stereo phone plug adapter 6.3 mm (1/4 inch) x 1

The supplied battery is only for initial use.

• Designs and specifications are subject to change without notice.