Expert Service 1-877-289-7664 [Hours]

Cyber Week Sale

Sennheiser SET900

Mobile Sound Booster and Infrared Stereo TV Listening System

In Stock. Only 2 Left!

10% Rewards
Free 2-day Shipping
Free Return Shipping
Extended Warranty
Learn More


with warranty

+ FREE Shipping in US 48

Order within 18 hrs 18 mins to ship 12/2

Qualifies for free 2-day shipping

Add an Extended Warranty

SquareTrade Product Warranty
Fast, Free Shipping

Within the US 48

60-Day Money-Back

Hassle Free Returns

365-Day Coverage

Warranty assistance for a year

In Stock. Only 2 Left!

Arrives by Tue, Dec. 8

Item Added to Cart

Sennheiser SET900

Mobile Sound Booster and Infrared Stereo TV Listening System


Keep Shopping

Get Added Peace of Mind with SquareTrade

Why SquareTrade?

  • The #1-Rated Protection Plan
  • 5-Day Service Guarantee & Free Shipping
  • Protection from Normal, Everyday Use
You have added a warranty
Add Warranty
3 years of protection

Get FAST answers from customers ASK a Question See questions answers

Bundled Savings with this Product


$20 Store Credit with Purchase!

Add both to cart and get $20 store credit.




Sennheiser SET900



100% OFF

$20 Store Credit


Special Price $0 ($20.00 if purchased separately)

$20 Store Credit

• No minimums or restrictions
• No expiration date
• Check your balance easily in your account area
• Secured to your account so you'll never lose it

(Offer 1 of 1)

Combined Total Price


You Save $20.00

Sennheiser Audio Store
What's In The Box?
  • SET 900 Headset
  • Wireless Transmitter
  • Carrying Case
  • Power Adapter with Conversion Plugs
  • User Guide

General Features:

  • Wireless Set Series In-Ear Wrap-Around Headset
  • Provides outstanding individual stereo sound
  • Functions as a mobile sound booster and infra-red stereo listening system
    • Offers listeners individually optimized sound in theaters or concert halls using infra-red transmission
    • Connect directly to your home sound system for enhanced hearing at home
  • Two switchable microphones on the receiver
    • Boost the voice of the person you are talking to
    • Improve awareness of your surroundings when watching TV
  • Three selectable hearing settings for optimized speech intelligibility:
    • Compression
      • Compensates for volume differences
      • Boosts quiet sounds
      • Reduces the volume of loud sounds when necessary
      • Self regulating setting that requires no changes to other settings
    • Treble Boost
      • Makes speech clearer and easier to understand
      • Additional fine tuning is possible using the treble boost control on the back of the transmitter
    • Compression and Treble Boost
      • Combines Compression and Treble Boost settings
  • Balance control and large, ergonomic volume control directly on the receiver
  • Receiver automatically turns on and off
  • Perfect fit rotatable ear cushions guarantee wearing comfort
  • Foldable receiver fits easily in the supplied carry case for easy transportation
  • Primary Color: Black
  • Accent Colors: Silver
  • Authorized Internet Dealer
  • 2 Year Manufacturer's Warranty

Product Specifications:

  • Headset Specifications
    • Frequency Response: 50-16,000 Hz
    • Sensitivity: 125dB
    • Integrated rechargeable Lithium ion battery
      • Operation Time: Up to 12 hours
      • Charge Time: Up to 3 hours
  • Wireless Transmitter Specifications
    • Transmission frequencies: 2.3MHz/2.8MHz, 95KHz
    • Range: Up to 39 ft. (12m)
    • Modulation:
      • FM
      • Stereo
    • 3.5mm stereo jack plug
    • Dimensions: 5.75"W x 4.75"D x 2.5"H

Headphone Design

Headphone Type

This is the design of the earpieces on the headphones. Some headphones go inside the ear, while others rest on the outside of the ear. This helps you know exactly what type of headphones you will be receiving.

In-Ear: The ear buds go into the ear. Most often, the right and left ear buds are two separate pieces.

Enclosed-Ear: Usually are found on the larger headphones. They rest on top of the ear and have padding for comfort, as well as enclosing the ear to the speaker. This type of headphone helps to filter out surrounding noise.

On-Ear: This type of headphone involves the speaker sitting gently on the ear without going in the ear or sealing it off.

Headband Type

Headphone type refers to the construction of the headphones.

Around the Ear means that the headphones wrap around the ear to provide a secure fit. This is most often seen in active and sports headphones.

Around the Neck means that the headphones wrap around the neck. This is also seen in active and sports headphones.

Earbuds means that the right and left sides of the headphones are separated and will fit securely into the ear. These are small, compact, and user friendly.

Over the Head headphones mean that the right and left speakers are connected with a support that goes over the head and rests on top. This is the typical headphone type.

Around the Neck
Specifically For
Some headphones can use an IR Transmitter in your vehicle, while some can be plugged into your media device and be used on the go or at home.
Acoustic Principle

The basic design of the headphones. There are 3 different types:

Open: Have ports that allow air through the back of the diaphragms, enabling the headphones to sound like the music is coming from an outside source.

Closed: Completely sealed and have no air passing through the diaphragms. Sounds like you are in a closed off room.

Semi-open: Have slots or ports in the back of the cup and are partially open. This allows for a mixed sound between an open and closed headphone.


General Features

Noise Reduction technology removes unwanted noise from a signal. Background or ambient noise can be removed to produce clearer speech and enhanced hearing. Typically these Active Noise Canceling (ANC) headphones are powered and use batteries to activate the noise canceling technology. Also referred to as Noise Reduction or Noise Cancellation.
Built-In Microphone
This means that the headphones or earbuds have a built-in microphone. This can be a microphone on the cord, built into the headphone, or even a boom microphone. These mics can be used for music devices like iPods, for Smartphones to make and receive calls, or for gaming purposes.
Headphone Connection
This is how the headphones connect to the audio source.

Corded means that the headphones use a cord to transfer the audio signal.

Bluetooth means that the audio signal is transmitted from your device to the headphones via a Bluetooth connection.

Corded or Bluetooth means that the headphones can be used as corded headphones or as Bluetooth headphones. They have an input in one or both earcups for use as a corded headphone while they also have a built-in battery for use as Bluetooth wireless headphones.

Wireless means that the audio signal is transmitted wirelessly to the headphones.

Home/RF Wireless
Volume Adjustment
Volume Adjustment means that the headphone (independent of the source) can adjust the playback volume. Many headphones and ear buds have in-line volume control, which allows adjusting the audible volume from a switch on the headphones cord. Other headphones have a volume knob on the headphone can.

Audio Features

Driver Type

The physical design of the driver in the headphones.

Balanced Armature:
A balanced armature driver uses a coil wrapped around an armature which is held in between two magnets until it is stimulated by an electrical current. When stimulated, this armature is magnetized which causes it to rotate one way or the other around a pivot point which moves the diaphragm to create sound. Balanced armature driver headphones are generally earbuds and can have multiple drivers in each earbud.

Dynamic drivers are the most common driver type. They feature a permanent magnet, usually neodymium, a voice coil and a conical diaphragm to drive your music. A dynamic headphone driver looks pretty much identical to any typical home theater speaker.

Electrostatic drivers are made up of an extremely thin membrane, usually a coated PET film, stretched between two metal plates. An electrical signal is applied to the metal plates to create an electrical field which, depending on its polarity, draws the speaker diaphragm toward one of the plates which forces air through the perforations in the diaphragm which generates the sound wave.

Planar Magnetic:
A planar magnetic driver is made up of a large membrane suspended between two sets of oppositely aligned magnets. An electric charge is applied to the membrane to induce movement and produce sound waves.

An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
125 dB
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
50 - 16000 Hz

Specials with this Item

Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!
VIP Guarantee

Warranty and Return Policy

Parts Warranty Duration
2 years
Labor Warranty Duration
2 years
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating

Browse 1 question and 1 answer
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
I have a previous model purchased in 2006. It finally wore out. I do have extra batteries for that model. I hope they will be the same for this new one.33
Patricia J C on Sep 16, 2015

Product Summary


Model Number

SET 900





Internal SKU


Internal Product ID


Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Sennheiser SET900