SET 840-TV Headphone Review

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The RF wireless mobility allows you to enjoy music for a wider range whether in another room or outside. You may just quickly adjust the settings for a clearer voice quality. The Sennheiser SET 840-TV is very easy to setup and manage. This device is perfect for the plasma TV. The wireless headset has an auto-tuning – automatic channel search which you can turn on the receiver. Its receiver automatically turns on/off when it’s being put on or removed. They have made the battery of Lithium polymer which gives longer operating time of up to 9 hours. The weight of the receiver is very light.

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SENNHEISER SET840 -TV RF Stereo TV Assistive Listening Headphones System
  • Connectivity Technology: Wireless
  • Wireless radio frequency system with transmitter and receiver (earphones) provide mobility within a range of up to 100 feet; even transmits even through walls
  • Three selectable hearing settings on the transmitter to optimize speech. Ideal for plasma TVs
  • TV connection cable with two 3.5 mm stereo jack plugs and one adapter to 1/4 inch (6.3 mm) jack socket
  • NOTE: Refer the User Manual from the Technical Specification before use which is highly recommended

Design and Build

Its ear pads are flexible, and it gives you comfort when you wear it even for a prolonged time. The receiver has a large volume and balance control rotary knob which allows you to adjust the loudness quickly and set the volume for the right and left ear.

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Sound Quality

The Sennheiser SET 840-TV uses Neodymium magnets & Duofol diaphragms. It’s an audiophile-grade sound reproduction that creates an excellent stereo sound.

What’s inside the Box

  • 1 RR 840 stethoset receiver
  • 1 TR 840 transmitter
  • 1 BA 300 battery
  • Two pairs of replacement earpads
  • One main power supply with national adapters for EU, UK
  • 1 TV RCA adapter
  • One television SCART adapter
  • One tv connection cable with two 3.5 mm stereo jack plugs and one adapter to 1/4″ (6.3 mm) jack socket

More Features

  • System Modulation: FM, Stereo

Carrier frequencies

  • EU version: 863.3/864.0/864.7 MHz
  • US version: 925.95/926.8/927.5 MHz
  • Frequency response: 50 Hz–16,000 Hz THD: < 1%
  • Signal-to-noise ratio(1 mV, peak deviation): type. 70 dB (A)
  • Operating temperature: 10°C to 40°C

Transmitter/RF radiated power

  • EU version: max. Ten mW (EIRP)
  • US version: max. 50 mV/m(at a distance of 3 m)


  • EU version: up to 100 m
  • US version: up to 100 ft


  • Connection: 3.5 mm stereo jack socket
  • Power supply: 13.5 V
  • Max. current consumption: 140 mA
  • Max. Power consumption (transmitter in conjunction with the NT 13 mains unit): 2.4 W (inc. battery and receiver charging and with switched-transmitter)
  • Standby consumption: approx. 0.9 W (w/o battery charging)


It isn’t heavy and very comfy to wear. Better sound quality compared to my previous TV listening system. Fine tuning to get a better reception is one of the pluses for this headset.

Product Comparison


  • SET 840-TV Headphone

  • DimensionDimension
  • WeightWeight
  • BatteryBattery
  • Battery LifeBattery Life
  • CableCable
  • Charging TimeCharging Time
  • ManufacturerManufacturer
  • OriginOrigin
  • PricePrice

  • Dimension112 x 146 x 58 m
  • WeightReceiver: 68 g
    Transmitter: 260 g
  • BatteryBA 300 Battery
  • Battery LifeOn use: Li-ion
  • Cable1 TV connection cable with two 3.5 mm stereo jack plugs and one adapter to 1/4" (6.3 mm) jack socket
  • Charging TimeApproximately 3 hours
  • ManufacturerSennheiser
  • OriginGermany
  • Price$$$

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SET 840-TV Headphone













  • Longer wireless connectivity, the range is up to 100 m.
  • This product is perfect for plasma TV.
  • The wireless receiver instantly shuts on/off when you remove or put on the headset.

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