8
EarPro
®
Tel
A compromise of the signal / noise ratio
for telephone communication.
The EarPro
®
Tel
has been specifically developed
to facilitate telephone conversations in noise using
a special filter and a silicone adapter suited to
positioning the telephone on the ear. (10 or 15 dB
with a conventional telephone / 25 dB with RXTX on
construction sites).
Telephone conversation in noise is a problem both for
listening and speech reception. Several factors affect
the quality of the telephone conversation: ambient
noise level, positioning of the earpiece on the ear, level
of the person’s voice, telephone sound quality, etc. It
was therefore necessary to develop specific products
for better use of the phone in noise.
The technical development of EarPro
®
Tel has the
advantage of technology developed for the specific
protection of musicians: MODERATO anti-noise PPE
(CE INRS). The EarPro
®
Tel uses this filter in a shaped
silicone tip to improve the positioning of the telephone
handset to the ear, allowing for better listening.
Telephone communication
Table of limits of use of EarPro
®
Tel in noise
Choice of the filter
Staff operating in the sound
environmental:
EarPro
®
Tel 15
For telephone DECT/GSM
75 dB(A) up to 85 dB(A)
EarPro
®
Tel 25
For RX/TX with volume
87 dB(A) up to 90/92 dB(A)
Two types of filters to deal with different sound levels as best as
possible: Care needs to be taken to the fact that the use of EarPro
®
Tel is
limited to ambient noise of types of noises, the quality of the telephone
and person’s hearing.
Warning:
Beyond 90/92 dB (A) the signal to noise ratio is too low
and does not allow good listening for most phones. Also, ambient
noise picked up by the microphone of the phone interferes with the
conversation. At levels over 92 /95 dB (A) active equipment such EarTel
cable should be used.
The EarTel cable option will allow you the best volume settings for optimal and direct
telephone listening.
EarTel
®
cable option
Keep your custom adapters
and simply clip the EarTel cable option on the ear of your choice. You can now use the phone without
being disturbed by noise. The EarTel cable option is suitable for DECT phones with their stereo 2.5 mm or GSM jack plug option. This
option is only available as a handle version (CE certifications obtained for EarPro
®
do not apply to EarTel Cable).
Table of limits of use of EarPro
®
cable in noise
Équipement
Réception des
informations
Émission de la parole
EarTel câble
95 / 100 dB(A)
87 / 90 dB(A)
We innovate and offer systems tailored to telephone communications.
UltraCompact acoustic filters. The shape of the
EarPro
®
Tel is specially designed for optimal use
of telephones.
CE certified PPE versions
Type of filter dB SNR
25
23.2
15
17.2
15 Ai
17.0
Comfort plug versions
Type of filter dB SNR
10
15.7
10Ai
15.2
EarTel
®
cable
Compatible with DECT and GSM systems
depending on the cable supplied.
