Side by side comparison and review of ASTRO A20 and Sennheiser HD 450BT. 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 | ASTRO A20 | Sennheiser HD 450BT |
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Product Type | Headset - wireless | Headphones - Bluetooth - wireless | |
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Weight | 320 g | 238 g | Sennheiser HD 450BT are lighter than ASTRO A20 headphones. |
Colour | Black, green | Navy, Call of Duty | Silver, Call of Duty | Black, blue | Black | White | |
Headband Material | Steel | - | |
Recommended Use | Game console, computer | - | |
Bluetooth Range (Operating Distance) | 9.14 m | - |
SOUND QUALITY | ASTRO A20 | Sennheiser HD 450BT |
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Headphones Form Factor | Full size | Full size | |
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Headphones Technology | - | Dynamic | |
Ear Cups Type | - | Closed | |
Foldable | - | Yes | Sennheiser HD 450BT can be folded. |
Connectivity Technology | Wireless | Wireless | |
Wireless Technology | - | Bluetooth | |
Bluetooth Version | - | Bluetooth 5.0 | |
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, apt-X LL | |
Active Noise Cancelling | - | Yes | Sennheiser HD 450BT are equipped with active noice cancellation. |
Sound Output Mode | Stereo | Stereo | |
Frequency Response | 20 - 20000 Hz | 18 - 22000 Hz | Sennheiser HD 450BT offer a larger frequency range than ASTRO A20. |
Total Harmonic Distortion (THD) | <3% | <0.3% | Sennheiser HD 450BT have lower total harmonic distortion than ASTRO A20. |
Sensitivity | 100 dB | - | |
Impedance | 32 Ohm | - | |
Max Sound Pressure | - | 108 dB | |
Diaphragm | 40 mm | - | |
Magnet Material | Neodymium | - | |
In-Cord Volume Control | Yes | - |
MICROPHONE | ASTRO A20 | Sennheiser HD 450BT |
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Form Factor | Headset microphone | Built-in | |
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Type | Boom | - | |
Microphone Operation Mode | - | Beamforming | |
Frequency Response | - | 80 - 6000 Hz | |
Audio Input Details | Uni-directional | - | |
Microphones Included | - | 2 |
REMOTE CONTROL | ASTRO A20 | Sennheiser HD 450BT |
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Controls | Volume, power on/off | - |
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CABLE | ASTRO A20 | Sennheiser HD 450BT |
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Cable Type | Micro-USB cable - detachable - 1 m Audio (optical) cable - detachable - 1 m Micro-USB cable - detachable - 50 cm |
Audio cable - detachable USB-C charge cable - detachable |
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Cable Length | 1 m | - | |
Detachable Cable | Yes | - |
BATTERY AND CHARGING | ASTRO A20 | Sennheiser HD 450BT |
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Battery Type | Headset battery rechargeable | Headphone battery rechargeable - lithium polymer | |
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Battery Capacity | - | 600 mAh | |
Battery Life | 15 hour(s) | 30 hours | Sennheiser HD 450BT lasts longer on a single charge than the ASTRO A20. |
Charging Time | - | 2 hours |
OTHERS | ASTRO A20 | Sennheiser HD 450BT |
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Included Accessories | Wireless transmitter | Carrying case | |
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Compatibility | Mac, Windows | - | |
Service & Support | - | Limited warranty - 2 years |