In depth comparison and review of Poly Blackwire 325-M and Sony h.ear on 2 Wireless NC WH-H900N. Compare design, audio features, functions and other important specifications to easily choose the right headphones for you. Our goal is to help you uncover differences between the products and find the headphones that will best fit your needs.
| DESIGN AND DIMENSIONS | Poly Blackwire 325-M | Sony h.ear on 2 Wireless NC WH-H900N |
|---|
| Product Type | Headset - wired - USB, 3.5 mm jack | Headphones - Bluetooth - wireless - NFC | |
|---|---|---|---|
| Series | 300 Series | - | |
| Weight | - | 290 g | |
| Colour | - | Moonlight blue | Greyish black | Horizon green | Pale gold | Twilight red | |
| Headband Material | Metal | - | |
| Recommended Use | - | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m | |
| High-Resolution Audio | - | Yes |
| SOUND QUALITY | Poly Blackwire 325-M | Sony h.ear on 2 Wireless NC WH-H900N |
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| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| Foldable | - | Yes | Sony h.ear on 2 Wireless NC WH-H900N can be folded. |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 4.1 | |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | - | SBC, AAC, aptX, aptX HD, LDAC | |
| Active Noise Cancelling | - | Yes | Sony h.ear on 2 Wireless NC WH-H900N are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | Digital Sound Enhancement Engine HX (DSEE HX) | |
| Frequency Response | 20 - 20000 Hz | 5 - 40000 Hz | Sony h.ear on 2 Wireless NC WH-H900N offer a larger frequency range than Poly Blackwire 325-M. |
| Sensitivity | - | 103 dB/mW | |
| Impedance | - | 32 Ohm | |
| Diaphragm | - | Titanium - 40 mm | |
| Magnet Material | - | Neodymium | |
| Features | SoundGuard Technology | - | |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | Poly Blackwire 325-M | Sony h.ear on 2 Wireless NC WH-H900N |
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| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | Boom | - | |
| Microphone Technology | - | Electret condenser | |
| Microphone Operation Mode | - | Omni-directional | |
| Frequency Response | 100 - 10000 Hz | 50 - 8000 Hz | Poly Blackwire 325-M offer a larger microphone frequency range than Sony h.ear on 2 Wireless NC WH-H900N. |
| REMOTE CONTROL | Poly Blackwire 325-M | Sony h.ear on 2 Wireless NC WH-H900N |
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| Controls | Mute, volume, answer/end | Volume, noise-cancellation suspend button |
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| CABLE | Poly Blackwire 325-M | Sony h.ear on 2 Wireless NC WH-H900N |
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| Cable Type | Headset cable - 2.13 m | Headphones cable - detachable - single-sided - L shaped - 1.2 m Micro-USB cable - 50 cm |
|
|---|---|---|---|
| Cable Length | 2.13 m | 1.2 m | |
| Detachable Cable | - | Yes | |
| Plated Connector | - | Gold |
| FEATURES | Poly Blackwire 325-M | Sony h.ear on 2 Wireless NC WH-H900N |
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| Intelligent Assistant | - | Siri, Google Assistant | |
|---|---|---|---|
| Additional Functions | DSP | - |
| BATTERY AND CHARGING | Poly Blackwire 325-M | Sony h.ear on 2 Wireless NC WH-H900N |
|---|
| Battery Type | - | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Life | - | 34 hour(s) | |
| Battery Life Details | - | Continuous playback (noise cancelling ON): up to 28 hours Continuous playback (noise cancelling OFF): up to 34 hours Standby (noise cancelling ON): up to 48 hours Standby (noise cancelling OFF): up to 200 hours |
|
| Standby Time | - | 200 hours | |
| Charging Time | - | 6 hour(s) |
| WIRELESS LINK | Poly Blackwire 325-M | Sony h.ear on 2 Wireless NC WH-H900N |
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| Radio Frequency Range | - | 2.4GHz, 2.4 - 2.4835GHz |
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| CONNECTIONS | Poly Blackwire 325-M | Sony h.ear on 2 Wireless NC WH-H900N |
|---|
| Connector Type | USB (4 PIN USB Type A) Headphones (mini-phone 3.5 mm 4-pole) |
Headphones (mini-phone stereo 3.5 mm 4-pole) USB (power only) (5 pin Micro-USB Type B (power only)) |
|---|
| OTHERS | Poly Blackwire 325-M | Sony h.ear on 2 Wireless NC WH-H900N |
|---|
| Included Accessories | - | Carrying pouch | |
|---|---|---|---|
| Compatibility | - | iPhone, iPod, Android phone | |
| Service & Support | Limited warranty - 2 years | - |
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