| Content | Frequency range (Hz-kHz) 18 Hz - 20 kHz
Color Hexachrome black
Headphones weight without cable (g) 280
Transmitter weight (g) 280
Rated impedance (ohms) 32
The K 912 headphone system
> uses state-of-the-art UHf radio transmission
technology.
> features an „Autotuning" function that automatically
tunes the headphones to the transmitter frequency
for optimum reception.
> connects to any audio, video, TV set, pC, or notebook
computer with a headphones, line, or recording outpu
> provides perfect sound reproduction, full mobility,
and signal transmission through walls and ceilings
over a distance of up to 100 feet/50 m (864 mHz: 330
feet/100 m) under ideal transmision conditions (free
field).
To share your listening enjoyment with other persons,
you can operate your transmitter with several head-
phones simultaneously. |
Providing cutting-edge digital wireless technology as well as intuitive handling, supreme wearing comfort and a long-lasting battery, the RS 2000 really lets you rediscover the joy of your TV program. With the RS 2000 your TV will deliver superior Sennheiser sound quality. Adjust the left and right volume for a pleasant and balanced sound. Then let clear speech and colorful music indulge your ears.
| Type: |
Dynamic |
| Frequency Response: |
15 - 16000 Hz |
| Total Harmonic Distortion: |
< 0.5 % at 1 kHz |
| Color: |
Black |
|
Listen to your favorite music wirelessly, from up to 300 feet away. This RF transmitter and rechargeable wireless headphone reproduces rich sound from almost any source and features auto on/off.
Technical Data
- Colorsilver
- Impedance24 Ω
- Dimensions85 x 225 x 133 mm
- ConnectorJack 3,5 mm/6,35 mm stereo
- Frequency response22 - 19500 Hz
- THD, total harmonic distortion< 0.7 %
- Ear couplingSupraaural
- Transducer principleOpen, Dynamic
- WeightReceiver: 230 g (inc. Batteries)
- WeightTransmitter: 200 g
- Power consumption< 1,8 W
- Signal-to-noise ratio> 65 dBA
- Operating time20 h
- ModulationFM stereo
- Power supplyReceiver: 2 AAA cells-rechargeable
- Power supplyTransmitter: 9V bloc
- SPL for peak deviation106 dB
What\'s in the box?
- HDR 120 II headphones
- TR 120 II transmitter with audio connecting cable
- Mains unit
- Two rechargeable batteries, 1.2 V, AAA size, Ni-MH
- Adaptor, 1/4" (6.3 mm)
|
Advanced Active Noise Cancellation
Up to 30 hours play time
Wireless via Bluetooth
Transparency Mode
Proximity Sensors
SPECIFICATIONS
Bang & Olufsen
Compatible with Bang & Olufsen App.
Battery
-
Rechargeable lithium-ion battery
-
Capacity: 1110 mAh
-
Up to 30 hours playing time with Bluetooth and ANC
-
Up to 45 hours with Bluetooth only
-
Up to 42 hours wired with ANC + control
-
Charging time approx 3.5 hours
Bluetooth
Bluetooth 4.2 · AAC codec
Compatible with Bluetooth 1.1 - 4.2
Colours
Black
Natural
Cord
1.2 m audio cord with 3.5 mm jack
1.25 m USB-A to USB-C cable
Designer
Jakob Wagner
Dimensions
180 x 186 x 51mm
Frequency
20 - 22,000 Hz
Included in the box
Beoplay H8i
1.2 m audio cord with 3.5 mm jack
1.25 m USB-A to USB-C cable
Flight adapter
Carrying pouch
Quick start guide
Loudspeaker
Electro-dynamic driver, 40 mm diameter
Materials
Aluminium, fabric, leather, polymer and rubber
Microphone
2 digital MEMS voice microphones
4 dedicated electret microphones for ANC (2 electret in each earcup)
On device controls
3 ways toggle switch for Power, ANC and Transparency Mode
3 buttons for volume up/down, Bluetooth pairing, play etc.
Proximity sensor
The headphones automatically pauses when you take them off (Pause/Play function).
Support
For further support visit the Beoplay H8i support page.
Transparency mode
Transparency Mode is accessible with a touch of a button on the earcup.
Weight
215g / 225g (incl audio cable)
|
Sennheiser's RS 165 is a superb digital wireless headphone system for movie watching and music. Its ergonomic, closed, circumaural design reduces background noise while providing an exceptionally comfortable fit, so that you can focus on enjoying your favorite television programs and movies.Easy to use and intuitive, all you need to do is to connect the included multi-purpose transmitter to your home audio or entertainment system. And because these headphones are from Sennheiser, you can count on a vibrant, detailed sound reproduction. Youʼll also be free to move around, since the RS 165 provides a robust, digital wireless audio transmission with minimum latency, and there is a bass boost listening mode for added power.
Sennheiserʼs RS 165: Get more from your TV and home audio today!
Features -
Closed, circumaural headphones with excellent digital wireless audio transmission
-
High-quality Sennheiser transducers and a selectable Bass Boost mode for vibrant sound
-
Intelligently designed controls for maximum ease of use
-
Multi-purpose transmitter – also functions as ʽeasy-chargeʼ cradle and docking station
-
Multi-receiver transmission – transmitter supports up to two pairs of headphones simultaneously
-
Ergonomic design for enhanced wearing comfort
-
2-year warranty
Type:
| Wireless Headphones Digital | | Frequency Response: | 18 - 21000 Hz | | Total Harmonic Distortion: | |
| The Audio-Technica ATH-M50xBTs are the Bluetooth version of the M50x wired headphones we gave four stars to around four years ago. This Bluetooth version behaves and performs in much the same way as that tethered stablemate – and that is pretty much a positive thing across the board.
You get a fair amount for your money here – and, most importantly, a good listen when you’re out and about.
The Bluetooth 5.0 version of the ATH-M50x looks and feels similar to its wired sibling, which means good-quality plastics on the earcups and headband, and well-padded earpads.
While these headphones don\'t have active noise-cancelling, the over-ear design, with those fairly thick pads, nevertheless makes an effective seal against the outside world for decent passive noise-exclusion.
The left earcup houses all the clever tech, with a switch to turn Bluetooth on and off, three buttons – for volume up, volume down (those buttons also acting to skip tracks forward or back with a longer push), and play/pause and end phone-calls. In among the buttons there are also sockets for the micro-USB charging cable and 3.5mm headphone cable – both of which are supplied, along with a storage pouch.
Finally, there\'s a touch panel in the middle of the left earcup, which complements the visible buttons on its edge. Pressing this allows access to the speech-recognition assistant on your device (Siri, Google assist etc).
The headphones are certainly designed with portability and out-and-about listening in mind. They fold up to about half-volume with a push of the ear-cups up into the headband, the joints swivelling and folding to accommodate as necessary. The storage pouch provided is barely big enough to house the cans in that state, but manages as a protective measure inside a bag.
The cable provided – which has a mic and play/pause/answer call button – is just 1.3m long; enough for listening on a commute, but not really suitable for home listening. In a change from the non-Bluetooth pair, the 3.5mm connection isn’t a push and twist affair, but it is still not quite standard, with a recessed section to allow a firm fit. That means care will need to be taken if you want to invest in a longer cable.
Audio-Technica claims a 40-hour battery life for the headphones’ Bluetooth functionality, on a full charge of around seven hours. The headphones beep to warn you that the battery is running low.
Setting up your headphones is a simple operation; just slide the button on the earpiece and the unit will be discoverable. For any additional devices, just make sure the headphones aren’t already connected to another unit – that is the only issue we have with connecting via Bluetooth.
Once set up, the ATH-M50xBTs are an enticing, easy listen. The midrange is particularly impressive, with vocals and the jangly guitar coming across crisp and clear in a Tidal Masters stream of The Jackson 5’s I Want You Back.
The track as a whole is conveyed with suitable verve and joy and has our foot tapping in no time. It’s extremely easy to get lost in the music – which is pretty much ideal in a pair of cans such as this.
However, the track also highlights one notable blemish to the sound. Once that familiar bassline kicks in, it takes position somewhat to the fore of proceedings – it’s not a huge issue, but it is certainly true that these headphones are fans of the lower registers in a way that\'s not altogether authentic.
That forward bass does contribute to the easy-listening and warm nature of these cans, and there are no issues with overly sharp or bright treble notes, but some rivals will offer a more purist, precise rendition of the music.
For many people on their daily commute that simply won’t be an issue – and indeed, for much of our time with the ATH-M50xBTs it isn’t for us – but it’s something to be at least considered.
The earpads make an effective barrier against the outside world, and commuting with the Audio-Technicas, we feel nicely cocooned against any distractions – while still being able to hear any important announcements.
But, after a while, our ears get rather warm. While that’s a positive bonus in the wintry February air, it may well become more of an issue in the warmer months. That said, the fit and comfort of the earpads is decent, even for those wearing glasses, and while the fit is firm, it is not uncomfortable over extended listening periods.
Specifications
Type
Closed-back dynamic
Driver Diameter
45 mm
Magnet
Rare earth
Voice Coil
CCAW (Copper-clad aluminum wire)
Frequency Response
15 – 28,000 Hz
Sensitivity
99 dB
Impedance
38 ohms
Battery
DC3.7 V lithium polymer rechargeable battery
Battery Life
Approx. 40 hours continuous use
Charging Time
Approx. 7 hours (for 0-100% charge)
Weight
310 g without cable and connector
Cable
Detachable 1.2 m iS controller cable with mic
Connector
3.5 mm (1/8″) stereo mini-plug
Accessories Included
30 cm (1.0′) USB charging cable, protective pouch
Type (Microphone)
Condenser
Sensitivity (Microphone)
-42 dB (1V/Pa at 1 kHz)
Frequency Response (Microphone)
80 – 10,000 Hz
Polar Pattern (Microphone)
Omnidirectional
Input Jack
Micro USB Type B
Communication System
Bluetooth Version 5.0
Maximum Communication Range
Line of sight – approx. 10 m (33′)
Compatible Bluetooth Profiles
A2DP, AVRCP, HFP, HSP
Support Codec
aptX, AAC, SBC
Accessories Included
30 cm USB charging cable
Protective pouch
Detachable 1.2 m iS controller cable with mic |
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