Side by side comparison and review of Audio-Technica ATH-DSR7BT and Poly Blackwire 325-M. 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 | Audio-Technica ATH-DSR7BT | Poly Blackwire 325-M |
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Product Type | Headphones - Bluetooth - wireless | Headset - wired - USB, 3.5 mm jack | |
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Series | - | 300 Series | |
Weight | 300 g | - | |
Headband Material | - | Metal | |
Bluetooth Range (Operating Distance) | 10 m | - |
SOUND QUALITY | Audio-Technica ATH-DSR7BT | Poly Blackwire 325-M |
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Headphones Form Factor | Full size | On-ear | |
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Adjustable Headband | Yes | - | |
Foldable | Yes | - | Audio-Technica ATH-DSR7BT can be folded. |
Connectivity Technology | Wireless | Wired | |
Wireless Technology | Bluetooth | - | |
Bluetooth Version | Bluetooth 4.2 | - | |
Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
Sound Output Mode | Stereo | Stereo | |
Built-in Decoders | Pure Digital Drive | - | |
Frequency Response | 5 - 40000 Hz | 20 - 20000 Hz | Audio-Technica ATH-DSR7BT offer a larger frequency range than Poly Blackwire 325-M. |
Sensitivity | 100 dB/mW | - | |
Impedance | 35 Ohm | - | |
Diaphragm | 45 mm | - | |
Features | Bluetooth aptX technology | SoundGuard Technology | |
In-Cord Volume Control | - | Yes |
MICROPHONE | Audio-Technica ATH-DSR7BT | Poly Blackwire 325-M |
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Form Factor | Built-in | - | |
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Type | - | Boom | |
Microphone Technology | Condenser | - | |
Microphone Operation Mode | Omni-directional | - | |
Frequency Response | 50 - 4000 Hz | 100 - 10000 Hz | Poly Blackwire 325-M offer a larger microphone frequency range than Audio-Technica ATH-DSR7BT. |
Audio Input Details | Omni-directional - 50 - 4000 Hz | - | |
Sensitivity | -44 dB | - |
REMOTE CONTROL | Audio-Technica ATH-DSR7BT | Poly Blackwire 325-M |
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Controls | Volume, answer/end | Mute, volume, answer/end |
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CABLE | Audio-Technica ATH-DSR7BT | Poly Blackwire 325-M |
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Cable Type | USB charge cable - 2 m | Headset cable - 2.13 m | |
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Cable Length | - | 2.13 m |
FEATURES | Audio-Technica ATH-DSR7BT | Poly Blackwire 325-M |
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Additional Functions | - | DSP |
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BATTERY AND CHARGING | Audio-Technica ATH-DSR7BT | Poly Blackwire 325-M |
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Battery Type | Headphone battery rechargeable - lithium polymer | - | |
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Battery Life | 15 hour(s) | - | |
Standby Time | 1000 hours | - | |
Charging Time | 4 hour(s) | - |
WIRELESS LINK | Audio-Technica ATH-DSR7BT | Poly Blackwire 325-M |
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Transmission Range | 10 m | - |
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CONNECTIONS | Audio-Technica ATH-DSR7BT | Poly Blackwire 325-M |
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Connector Type | USB (power only) (5 pin Micro-USB Type B (power only)) | USB (4 PIN USB Type A) Headphones (mini-phone 3.5 mm 4-pole) |
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OTHERS | Audio-Technica ATH-DSR7BT | Poly Blackwire 325-M |
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Included Accessories | Carrying pouch | - | |
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Service & Support | Limited warranty - 2 years | Limited warranty - 2 years |