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Sennheiser RS 120 Wireless headphones

Item # 143RS120

The RS 120 wireless headphones from Sennheiser deliver spacious, well-balanced sound with solid bass response.

The RS 120 wireless headphones from Sennheiser deliver spacious, well-balanced sound with solid bass response.

Item # 143RS120

Shop all Sennheiser Headphones

About the Sennheiser RS 120

Ralph Graves
The RS 120 wireless headphones from Sennheiser deliver spacious, well-balanced sound with solid bass response. The included radio frequency (RF) transmitter has a maximum range of 328 feet and can send its signal through walls and ceilings. That means you'll be able to enjoy your music just about anywhere in or around your home — even outside. Plus, you can add optional headsets to share the fun with family and friends. (Add-on HDR 120 headsets available separately.)

The RS 120 wireless headphones from Sennheiser deliver spacious, well-balanced sound with solid bass response. The included radio frequency (RF) transmitter has a maximum range of 328 feet and can send its signal through walls and ceilings. That means you'll be able to enjoy your music just about anywhere in or around your home — even outside. Plus, you can add optional headsets to share the fun with family and friends. (Add-on HDR 120 headsets available separately.)

The transmitter doubles as a handy storage stand, and it also conveniently recharges the headset's "AAA" rechargeable batteries. The transmitter is wall-mountable, and its attached cables let you connect it to any stereo or home theater system with a standard stereo RCA output.

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Product highlights:

  • cushioned, on-the-ear design with open earcups and a padded, adjustable headband
  • 900 MHz RF (radio frequency) wireless transmission
  • selectable 3-channel transmission
  • transmitter/storage stand charges the headset's battery pack
  • transmitter can be wall-mounted
  • attached input cable
  • includes two "AAA" NiMH rechargeable batteries
  • headphones include volume control, on/off switch and tuning button
  • frequency response 22-19,500 Hz
  • listening range: up to 328 feet
  • AC adapter
  • transmitter dimensions: 3-3/8"W x 8-7/8"H x 5-5/16"D
  • headset weight: 8.2 oz.
  • warranty: 2 years
  • MFR # 009922
  • Item # 143RS120

What's in the box:

Sennheiser RS 120 owner's manual

If you need assistance accessing this owner's manual, please give us a call.
  • HDR-45 925MHz wireless on-the-ear headset
  • TR120 transmitter/battery charger with 7.96' stereo RCA cables
  • Gold-plated 3.5mm female mini-jack to 1/4" male headphone plug adapter
  • Stereo female RCA to 3.5mm male mini-plug adapter
  • 2 "AAA" Ni-MH rechargeable batteries (600 mAh)
  • 1 UD-0902B AC adapter (output 9V DC 200mA) with 6.3' cord
  • EC Declaration of Conformity Sheet
  • Instruction Manual
  • "Connections of the US versions" instruction sheet
  • A Visual guide showing how to connect the AC adapter

More details on the Sennheiser RS 120

Mark G.

Features & specs

General
Fit Style On-ear
Earcup Type ---
Earcup Width x Height 3-3/16" x 4"
Noise-canceling No
Bluetooth No
Bluetooth Version ---
Single-earbud Operation ---
Mic For Taking Calls No
Battery Life N/A
Total Battery With Charging Case N/A
Voice Assistant Access
Amazon Alexa No
Google Assistant No
Siri No
Connectors
3.5mm Yes
1/4" Yes
Lightning No
4.4mm balanced No
XLR4 balanced No
2.5mm No
Other None
Specs
Frequency Response 22-19,500 Hz
Sensitivity 106 dB
Impedance Not Given
Weight 8.11 ounces
Cord Length N/A
Parts Warranty 2 Years
Labor Warranty 2 Years
The Sennheiser RS 120 replaces these items:

Product Research

Features
Controls
Connections
Specifications

Features

Open-Air, Supraural On-the-ear Design: Sennheiser headphones adjust to the shape of your head, with their joints, flexible materials and extendable arms. Comfortable cushions provide optimum comfort in those places where sturdy material would rest on your head.

Transmitter/Recharger: The system comes with an RF transmitter that connects to an audio source via preamp outputs. Its transmission range is from 926 to 928 MHz. It transmits a signal to the headset, using one of three selectable transmission channels. With this powerful transmitter, your crystal clear listening range is up to 328 ft. The transmitter has an automatic On/Off function. It switches on and begins transmitting when it detects an audio signal, and will switch off if it detects no audio signal for 3 minutes. The transmitter also functions as a storage stand/charger for the headset's NiMH rechargeable battery when not in use. This unit also has overcharging protection. There is a keyhole slot on the back of this transmitter for wall mounting.

Headset: The headset features cloth ear pads for listening comfort. The left ear cup has a compartment for the user replaceable rechargeable battery, and an On/Off switch. On the right ear cup, there is a tuning control for tuning the headphones to the base, and a headset volume control. The headset also has contacts that allow the battery to be recharged when the headset is placed on the transmitter/storage stand.

Rechargeable "AAA" Batteries: Power for the headset is provided by two "AAA" rechargeable batteries that fit into a compartment on the headset (supplied). The batteries in the headset are recharged whenever the headset is placed on the transmitter/storage stand. Fully charged batteries have an operating time of about 20-25 hours. The manual recommends an initial charging of 24 hours before the batteries are first used, after that the normal charging time is approximately 18 hours. Note: Only rechargeable batteries should be used.

Controls

Transmitter:

  • Channel Switch: allows you to select transmission channel 1, 2 or 3
  • On/Off: Green LED indicates whether the unit is on or not
  • Charge Indicator: A red LED will illuminate when the battery in the headset is being charged

Headset:

  • Volume Control: allows you to adjust the volume of the headset
  • Tuning Button: allows you to tune the headset for the clearest reception
  • On/Off Switch: turns the headset on or off
Connections

Transmitter:

  • Audio In: this cable is permanently attached to the transmitter, with stereo male RCA connectors at the other end.
  • DC Input: for use with supplied AC adapter

Headset:

  • Charging Contacts: interfaces with charging arms on transmitter to charge the "AAA" NiMH batteries.
Specifications

Specifications:

  • Carrier Frequency: 926-928 MHz

  • Modulation: FM stereo

  • Frequency Response: 22-19,500 Hz

  • Dimension of Transmitter: W=3.303", H=8.799", D=5.256"

The Sennheiser RS 120 replaces these items


Adding...
Sennheiser RS 45

Sennheiser RS 45

900 MHz wireless headphones
  • On-the-ear earcups with padded adjustable headband
  • CenterLock™ auto tuning
  • selectable 3-channel transmission

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