Side by side comparison and review of Sony MDR XB650BT and Poly Blackwire 325. Compare design, sound quality and other key specifications and features to simplify the choice of your perfect headphones. Our goal is to make it easier for you to decide on the headphones that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Sony MDR XB650BT | Poly Blackwire 325 |
|---|
| Product Type | Headphones - Bluetooth - wireless - NFC | Headset - wired - USB, 3.5 mm jack | |
|---|---|---|---|
| Series | XB Series | 300 Series | |
| Weight | 190 g | - | |
| Colour | Black | Blue | Red | - | |
| Headband Material | - | Metal | |
| Recommended Use | Portable electronics | - |
| SOUND QUALITY | Sony MDR XB650BT | Poly Blackwire 325 |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Closed | - | |
| Connectivity Technology | Wireless | Wired | |
| Wireless Technology | Bluetooth | - | |
| Bluetooth Version | Bluetooth 4.0 | - | |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP), Low Complexity Subband Coding (SBC) | - | |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | Extra Bass | - | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | 95 dB/mW | - | |
| Impedance | 24 Ohm | - | |
| Diaphragm | 30 mm | - | |
| Features | - | SoundGuard Technology | |
| In-Cord Volume Control | - | Yes |
| MICROPHONE | Sony MDR XB650BT | Poly Blackwire 325 |
|---|
| Type | - | Boom | |
|---|---|---|---|
| Microphone Technology | Electret condenser | - | |
| Frequency Response | - | 100 - 10000 Hz | |
| Audio Input Details | Omni-directional | - |
| REMOTE CONTROL | Sony MDR XB650BT | Poly Blackwire 325 |
|---|
| Controls | Volume control | Mute, volume, answer/end |
|---|
| CABLE | Sony MDR XB650BT | Poly Blackwire 325 |
|---|
| Cable Type | Micro-USB charge cable - 50 cm | Headset cable - 2.13 m | |
|---|---|---|---|
| Cable Length | - | 2.13 m |
| FEATURES | Sony MDR XB650BT | Poly Blackwire 325 |
|---|
| Additional Functions | - | DSP |
|---|
| BATTERY AND CHARGING | Sony MDR XB650BT | Poly Blackwire 325 |
|---|
| Battery Type | Headphone battery rechargeable - Lithium Ion | - | |
|---|---|---|---|
| Battery Life | 30 hour(s) | - | |
| Standby Time | 300 hours | - | |
| Charging Time | 4 hour(s) | - |
| CONNECTIONS | Sony MDR XB650BT | Poly Blackwire 325 |
|---|
| Connector Type | Bluetooth | USB (4 PIN USB Type A) Headphones (mini-phone 3.5 mm 4-pole) |
|---|
| OTHERS | Sony MDR XB650BT | Poly Blackwire 325 |
|---|
| Service & Support | - | Limited warranty - 2 years |
|---|
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