Sennheiser HDR 175 manual

Sennheiser HDR 175
7.2 · 5
PDF manual
 · 37 pages
manualSennheiser HDR 175
Putting the RS 175 into operation
RS 175
| 19

Charging the rechargeable batteries

In general, a complete charging cycle takes about 8.5 hours. However,
before using the headphones for the first time, charge the rechargeable
batteries for at least 16 hours without interruption to optimize the perfor
mance of the batteries.
When the rechargeable batteries are almost empty, the HDR status LED
turns red and you hear beeps in the headphones. The headphones switch
off after few minutes.
Place the headphones on the headphones holder of the transmitter.
You may place the headphones on either side provided that the
charging contacts of the headphones and the transmitter connect.
The headphones automatically switch off and the Charge status LED
on the transmitter lights up red.
When the rechargeable batteries are
fully charged, the Charge status LED turns green.
CAUTION Danger of damage to the headphones!
If you insert non-rechargeable batteries into the battery
compartments, the batteries may leak during charging and
can damage your headphones.
Do not place the headphones on the headphones holder if
you are using non-rechargeable batteries.
When not in use, place the headphones on the headphones holder to
ensure that batteries are fully charged when needed. The transmit-
ter utilizes an intelligent battery charging technology that prevents
After taking the headphones from the holder of the transmitter, the
Charge status LED indicates the approximate operating time of the
headphones (see page 10).

View the manual for the Sennheiser HDR 175 here, for free. This manual comes under the category Headphones and has been rated by 5 people with an average of a 7.2. This manual is available in the following languages: English. Do you have a question about the Sennheiser HDR 175 or do you need help? Ask your question here

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Sam Zuccarello • 26-6-20211 comment

my base unit flashes a red light all the time when charging. i have the HDR 175

Jim • 18-7-2022

I put in new rechargable batteries. The base unit was initially red, and after a while went to flashing red. Now, the headset won't turn on.

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Birgit Menn • 15-10-20221 comment

My Charger Station is Blinking green and there is no Sound on the headphones, Even through they are fully Charged

mike • 23-10-2022

my charger station is blinking green an there is no sound on the on headphones. headphones are fully charge. what is wrong

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matt • 20-1-2023No comments

how do you charge it or do you need batteries

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Coral Davis • 13-1-2023No comments

HDR 175 Headphones work fine with Smart TV on main channels (7, 9, & 10 etc) but do not work on 7 Mate and other like channels or Netflix. Can anyone help with this problem please

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Gord Monette • 21-11-2022No comments

the led light that charges the batteries remains red all the time. is this normal.

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Sam • 1-11-2022No comments

Hi I’m trying to connect my hdr 175 headphone to a new tv and the tv does not seem to be recognizing it. Is there anything I need to do other than plug in the optical cable?

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Charles Laquidara • 17-10-2022No comments

I just changed the batteries. My HDR175 headphones cut out every few seconds. I disconnected the system for 30 minutes. But cannot stop the cut outs. Any ideas?

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Chuck Campbell • 11-10-2022No comments

My base is a Model TR 175 Headphones marked as HDR 175

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Jim • 18-7-2022No comments

Reading from the manual, it seems that I have a charging fault. Does that mean that my base unit is dead, and must be replaced?

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David Plant • 25-5-2022No comments

My Rs 175 is still blinking red after 16 hours of charging? Unit is brand new haven't used yet.

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Number of questions: 17

HDR 175 | 505582
4044155078954, 0793518970971, 0615104229563
User manual (PDF)
Headphone sensitivity114 dB
Total Harmonic Distortion (THD)0.5 %
Acoustic systemClosed
Headphone frequency17 - 22000 Hz
Ear couplingSupraaural
Continuous audio playback time18 h
Battery technologyNickel-Metal Hydride (NiMH)
Battery typeAAA
Number of batteries supported2
Rechargeable battery
Ports & interfaces
Frequency band2.4 GHz
Wireless range100 m
Connectivity technologyWireless
Other features
Weight & dimensions
Weight310 g
Product colourBlack
Wearing styleHead-band
Product typeHeadphones
Recommended usageMusic
Microphone typeNot available
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