| Content | AKG K915 Over Ear Wireless Headphone
Superior audio quality combined with ease of use makes wireless a hassle free benefit.
- Closed back acoustic design
- Unique, modern design
- Over 8 hours continuous playtime
- Over 30m reception range
- Robust, digital 2.4Ghz technology
- One button set up
- Sensitivity selector for home Hi-Fi or mobile devices
DIGITAL 2.4GHZ WIRELESS CONNECTION
Crisp, clear audio that follows you throughout the home
- Digital audio streaming technology delivers high-quality sound without bothersome artifacts
- 2.4GHz wireless technology offers generous signal range and robust connection
TRANSMITTER BASE WITH INTEGRATED CHARGER
Store, charge, and stream audio to your headphones in style
- Headphones charge automatically as they rest on the cradle between uses, so theyʼre always ready for action
- Transmitter base connects to your audio system and mobile devices with RCA & 3.5mm analog audio connections
OTHER FEATURES
On-headphone controls for volume, power, and wireless pairingControl your listening experience while away from your audio system
- Handy controls let you vary volume as needed, wherever you are
ADJUSTABLE SENSITIVITY
Select a signal sensitivity that best matches your audio sourceDefault mode (0dB) leaves signal unchangedReduced-sensitivity mode (–8dB) improves performance with higher-output audio sources
LED INDICATORS MAKE SYSTEM STATUS CLEAR
Lighted indicators for headphone power and wireless pairing status, as well as transmitter base power and battery charge status
- Never be in doubt about power, charging, or pairing status
WHAT'S IN THE BOX
- 1 pair AKG K915 headphones
- 1 K915 docking station
- 1 Cable - suitable for mini jack (3.5mm) or RCA outputs
- 1 User Manual
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- 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
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Noise Cancelling headphone, active noise-cancelling technology, rechargeable battery via USB, up to 30 h running time (active noise-cancelling), 3D Foldable design, closed back, on-ear, 32 Ohms impedance, max SPL: 123 dB, frequency range: 10 - 22000 Hz, 30 mW maximum input power, 1,2 detachable cable with 1-button remote and mic, flight adapter, USB charging cable, weight: 150 g, colour: black | 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 | Overview:
W800BT Wired and Wiresless Headphones Bluetooth 5.1 and wired feature 55-hours of in-use battery 40mm drivers Multiple collection of colours Choose from our diverse colour schemes that provide a sleek and stylish design. Enjoy personality with functionality. A great selection that compliments your stylistic needs.
Features:
FREQUENCY RESPONSE:20Hz~20kHz Bluetooth
Bluetooth V5.1 Impedance 32Ω Sensitivity:100dB
Supporting ProtocolHSP HFP A2DP AVRCP
Connecting distance10m Battery capacity1400mAh rechargeable battery
Working time 55 hours
Standby time about 800 hours
Charging time about 3 hours
Charging inputDC 5.0V=500mA |
Features & benefits
Wireless high quality sound
Foldable, Portable, Secure
AKG signature sound
Long-lasting comfort
Specs | Audio Specifications |
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| Driver | Closed-back headphones | | Frequency Response | 20-20 kHz | | Maximum Input Power | 50 mW | | Input Impedance | 32 ohms | | Sensitivity | 102 dB SPL/V | | AKG Easy Compare |
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| Style | Over-ear | | Sound | Signature sound | | Connectivity | Bluetooth 3.0 | | Smartphone control | Smartphone | | General Specifications |
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| Colour | Black | | Cable | 1.20 m | | Connector | 3.5mm jack | | Weight | 288 g |
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