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System requirements
Modulation MSK Digital
Carrier frequencies 2.4 – 2.48 GHz
Range approx. 100 m in the open area
Rated Input 100 - 240 V, 0.2 A, 50/60 Hz
Transmitter
Audio input 3.5 mm stereo
Audio output RCA
Power consumption
Power supply 5 V DC , 500 mA
Signal-to-noise ratio 85 dBA (0.5 Vrms, 1kHz)
Weight approx. 204 g (without batteries)
Dimensions 12,5 cm x 11,2 cm x 23,0 cm
Headphone
Transducer principle (Headphones) open, dynamic
Ear coupling circumaural
Sound pressure level (SPL) 110 dB
THD, total harmonic distortion |
- Colorblack
- Dimensions93 x 93 x 27 mm (approx.)
- Bluetooth VersionVersion 4.2, class 1
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- Supported ProfilesA2DP
- Connection cableoptical cable-1.5m/analog 3.5mm cable-1.5m/USB power cable-1.2m
- Operating temperature0-40°C (32-104°F)
- RF output power10 mW (max)
- Number of channels79
- Input voltage range5V
- Frequency bandISM 2.4GHz Band
- Frequency range2.4GHz~2.4835GHz
- RF sensitivity-80dBm (BR, Max)
- Transmission frequency2402 to 2480 MHz
- Weight w/o cable85g
- Connectionanalog or digital
- Audio codecSBC, aptX,aptX LL
| Compact high end portable Bluetooth earphones with ergonomic for an outstanding all-day listening experience. With an integrated microphone, a six-hour battery life and a luxurious leather case, the MOMENTUM Free is the perfect companion for the mobile lifestyle.
Delivery Includes
Wireless Headset
USB Charging Cable
Ear Adaptor Set (XS, S, M, L)
Carrying Case
Safety & Quick Guides
| Frequency Response: |
15Hz - 22000Hz |
| Total Harmonic Distortion: |
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DW Office ML is a single-sided premium wireless DECT headset optimized for Microsoft Lync. Enjoy your calls in HD voice clarity and get natural high-definition sound for superior voice clarity. Work safely ensured that the ActiveGard© technology will protect your hearing. Imagine making every call in comfort, and being able to focus on whatʼs important: the conversation. DW Office ML connects to both desk phone and softphone.
Features-
Optimized for Microsoft Lync
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Intuitive user interface – Mute microphone and adjust volume up or down
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Full workday Talk Time – 8 hours in wideband sound mode and 12 hours in narrowband sound mode
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Intelligent fast charging – 50% in 20 minutes gives you 4 hours talk time
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Long Distance Wireless Range – In typical office building: Up to 55 m and in line of sight: Up to 180 m.
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Protected hearing – ActiveGard© technology protects against acoustic shock and sudden sound surges
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Boosted productivity – Noise-canceling microphone filters out unwanted background noise
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Desk phone & softphone – Switch from one communication channel to the other. One touch on the base station to select the channel you wish to call from
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Intuitive and Easy pairing – For desk sharing and phone conference
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GAP compatible
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EHS (electronic hook switch) only with accessories (e.g. EHS-cable)
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Mechanical handset lifter accessory HSL 10 available
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Softphone Call Control Software 'HeadSetup' included on CD
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Microsoft Communicator compatible
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Automatic acoustic shock prevention with ActiveGardTM
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EU/AU limit through DIP-switch
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Nameplate for headset personalization
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Headset Autolink switch on basis station
| Type: | Single | | Connection: | DECT CAT-iq | | Use: | premium wireless DECT | | Frequency Response (mic): | 150Hz - 6,8KHz | | Frequency Response (Headphones): | 150Hz - 6,8KHz | | Call Duration: | up to 12 hours | | Charge time: | 1 hour | | Standby time: | up to 100 hours | | Effective range: | 55 m | | Special Specs: | Microsoft Lync | | Includes: | Headset, Base Station, Power supply, USB cable, Headband |
| 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 |
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)
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