Etymotic Research hf2 User manual

Brand: Etymotic Research

Model: hf2

Category: Headphones

Type: User manual

Etymotic Research hf2 is a high-fidelity, hands-free, noise-isolating headset and earphones with a 4 ft. cable. It is compatible with iPhones, other music phones, and most music players that accept a 3.5 mm stereo plug. The hf2 headset + earphones come with assorted eartips, a filter tool with 2 replacement filters, and a storage pouch.

The hf2 headset + earphones have a full bass response and proper earphone insertion is necessary for the best results. The earphones should seal in the ear canals to provide noise isolation of 35-42 dB, depending on the eartip used. The hf2 headset + earphones can be worn with the cables in front or in back of the head, and the cable slider can be adjusted for a snug fit.

User Manual

High-fidelity | Hands-free

headset + earphones

hf 2

Included

Works with iPhone and other music phones that operate with a

3.5 mm/4-contact phone + stereo plug.

Compatible with most music players (e.g.,iPod,mp3,CD) that

accept a 3.5 mm stereo plug.

• High-fidelity,hands-free, noise-isolating

headset + earphones with 4 ft.cable

• Assorted eartips

• Filter tool with 2 replacement filters

• Storage pouch

Compatibility

hf2 Identification

A.Earphones

B. Cable slider

C. Microphone

D. Send | End button

E. 3.5 mm, 4-contact

phone + stereo plug

Caution

Consult an audiologist or physician if you have excessive ear wax,

difficulty inserting the eartips,or discomfort after prolonged use.

hf2 headset + earphones exclude most external sounds.

While

driving, always leave one ear open

. It is unsafe to use in-ear

earphones while operating a motorized vehicle,operating

machinery, bicycling or jogging,because you may not be alerted

to potential danger.

Do not use the headset at excessively loud levels. Research

confirms that earphones that seal the ear canal allow listeners to

choose safer listening levels. Noise-induced hearing loss is a

function of exposure time, the average sound level and the peak

of very loud sounds. Sealed eartips and lower listening levels

allow for longer periods of safe listening time.

Performance

A full bass response depends on proper earphone insertion. For

best results, earphones must seal in the ear canals.

Proper Care

• Do not expose the headset to extreme temperatures.

• Avoid dropping and strong impact.

• Leave eartips on the earphones for shock protection.

• Do not pull on the cord to remove the headset from the

device or the ear.

• Clean or replace flanged eartips prior to use by others.

• Replace disposable foam eartips regularly.

• Clean or replace flanged eartips every 6-12 months

1. Remove the eartip.

2. Clean with water and mild soap.

3. Dry the eartip.

4. Replace the eartip.

Cleaning the Eartips

Insertion

Flanged eartip insertion

• To ease insertion, moisten the

flanged eartips.

• Carefully insert one earphone at a

time while pulling up and out on the

back of the ear.

• Earphones should seal comfortably

in the ear canals.

For a video on proper earphone insertion go to

www.etymotic.com.

Foam eartip insertion

• Use a foam eartip if a good seal cannot be obtained with a

flanged eartip.

• Roll down or compress foam eartips before inserting. Hold the

eartip in place for about 5 seconds while the foam expands to

create a tight seal in the ear canal.

Removal

Remove earphones slowly with a twisting motion to gradually

break the seal. Do not pull on the cable to remove the earphones.

SEND/END

button

SEND/END

button

Music | Call Button

Listening to Music

Play/Pause

While listening to music:

• Press the SEND/END button

once to Pause music.

• Press the SEND/END button again to Play music.

Track Forward

While listening to music:

• Press the SEND/END button

twice rapidly to track forward.

Answering a Call

Music automatically mutes and pauses for an incoming call.

To answer a call while listening to music:

• Press the SEND/END button to answer the call.

Disconnecting a Call

• Press the SEND/END button to disconnect the call.

• Music automatically resumes.

Filters

hf2 earphones have special filters that smooth the frequency

response and prevent earwax from entering the earphones. A

filter is located at the end of the earphone and is visible when the

eartip is removed. If a filter becomes clogged, it should be

replaced. A dirty filter will reduce earphone output. A filter

should be changed if the loudness decreases or the sound quality

declines.

Note: Filters are not reusable.

Filter Removal

Filter Replacement

1. Remove Eartip. 2. Insert tool into

the filter.

3. Remove filter.

1. Insert a new filter and press

gently against a hard surface

to secure it in place.

2. Re-attach eartip.

Cable Slider

Specifications

Frequency response: 20 Hz -16 kHz

Noise isolation: 35- 42 dB (depending on eartip used)

Acoustic polarity: + electrical = + acoustic

Transducer type: Balanced armature

Sensitivity (1 kHz): 105 dB SPL for a 0.1 VRMS input

Impedance: 16 Ohms (nominal)

Maximum output: 120 dB SPL

Maximum continuous input: 0.55 VRMS

Microphone sensitivity: -40 dB V/Pa

Cable: 4 ft

Weight: 1.3 oz

hf2 headset + earphones can be worn with the cables in

front or in back of the head. The cable slider can be adjusted

by moving it up or down for a snug fit.

Etymotic Research, Inc.

Etymotic Research,Inc. warrants this product against defects in

material or workmanship for a period of two years from the date

of original purchase from an authorized Etymotic distributor

or reseller.

Etymotic will repair or replace the defective product at its option

if returned within the warranty period to our designated service

facility. This warranty is in lieu of all other warranties,expressed

or implied, including,but not limited to, any implied warranty of

merchantability or fitness for a particular purpose.

Warranty

Etymotic Research has spent twenty-five years developing in-ear

technology for auditory research, precision monitoring and critical

listening. Etymotic has developed many innovative hearing

technologies available today. Etymotic’s products are used by

musicians and others who insist on superior sound quality.

Etymotic means “true to the ear.”

ETYMOTIC RESEARCH INC.

61 Martin Lane • Elk Grove Village, IL 60007

www.etymotic.com • 1-888-ETYMOTIC

more of the following U.S.patents:#4,677,679,#4,763,753,#5,887,070,RE38351 and other patents pending.

Etymotic Research hf2 User manual

Brand: Etymotic Research

Model: hf2

Category: Headphones

Type: User manual

Download PDF

report

Etymotic Research hf2 User manual

Etymotic Research hf2 User manual

Related papers

Other documents