THD, total harmonic distortion 90 dBA Modulation 8-FSK Digital Carrier frequencies 2.4 – 2.48 GHz
What\'s in the box?
HDR 175 headphones TR 175 transmitter Optical cable Audio cable Power supply with 4 adapters (EU, UK, US & AU) 2 AAA NiMH rechargeable batteries Quick guide
Antenna booster range BW, 626-698 MHz
Up to 19 hours play time Wireless via Bluetooth True comfort High quality sound Premium durable materials
SPECIFICATIONS
Battery
Rechargeable lithium-ion battery Capacity: 600 mAh Up to 19 hours with Bluetooth Charging time: app. 2.5 hours
Bang & Olufsen App
Compatible with Bang & Olufsen App.
Bluetooth
Bluetooth 4.2 · AAC codec 10m operating range · Remembers the last 8 paired devices (connects to one)
Colours
Charcoal grey Black
Cord
Audio cord 1.2 m with 3.5mm jack USB cord for charging 0.25m
Designer
Jakob Wagner
Dimensions
195 x 220 x 50mm 7.7 x 8.7 x 3.5in
Frequency
20 - 20,000 Hz
Included in the box
Beoplay H4 headphones Quick start guide 1.25m audio cable with 3.5 mm jack 0.25m USB to Micro USB cable for charging
Loudspeaker
Electro-dynamic driver, 40 mm diameter
Materials
Lambskin leather, aluminium, stainless steel and braided textile cord.
Microphone
One electret type, Omnidirectional
On device controls
3 buttons on the right ear cup for Bluetooth pairing, controlling music and phone calls: Audio (Play/Pause), Tracks (Next/Previous), Volume (Up/ Down), Calls (Answer/End), Voice Activation
Support
For further support visit the Beoplay H4 support page
Weight
235g 8.3oz (incl. Cable:245g/8.6oz)
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
Created with the music lover in mind, the RS 185 now makes it possible to enjoy dynamic, high-fidelity Sennheiser sound at home without the hassle of wires. These innovative, ergonomically designed, wireless open headphones deliver amazingly precise sound reproduction in uncompressed digital quality even as you wander from room to room, and they are light and comfortable enough for extended periods of use.Furthermore, the conveniently located manual input level and balance controls make setting the listening levels to your individual preference a snap, so you’ll be able to fine-tune the details of each track in stunning acoustic clarity. Just connect the multi-purpose transmitter to your home sound system (via optical or analog inputs) and lose yourself in the music.Sennheiser’s RS 185: The right wireless choice for serious listeners.
FEATURES
Wireless, open, circumaural headphones with uncompressed digital audio transmission
Exceptional digital audio clarity and transmission range of up to 328ft/100m (line of sight)
High-performance Sennheiser transducers for precise, thrilling sound
Control the sensitivity of your analog input – choose between Automatic Level Control (ALC) mode to even out volume differences automatically or Manual Level Control (MLC) mode to manually adjust the sensitivity
Supports analog and digital audio inputs and allows toggling between the inputs
Balance control located on the headset for convenient adjustments
Multi-purpose transmitter – also functions as ‘easy-charge’ cradle and docking station
Multi-receiver transmission – transmitter supports up to two pairs of headphones simultaneously
Ergonomic design for enhanced wearing comfort
Type:
Dynamic, open
Frequency Response:
17 - 22000 Hz
Impedance:
-
Total Harmonic Distortion:
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.
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