Side by side comparison and review of Sennheiser HD 4.20s and Sennheiser HD 4.50 BTNC Wireless. 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 | Sennheiser HD 4.20s | Sennheiser HD 4.50 BTNC Wireless |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headphones - Bluetooth - wireless - NFC | |
|---|---|---|---|
| Weight | - | 238 g | |
| Colour | Black | - | |
| Recommended Use | - | Portable electronics |
| SOUND QUALITY | Sennheiser HD 4.20s | Sennheiser HD 4.50 BTNC Wireless |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | Closed | Closed | |
| Foldable | - | Yes | Sennheiser HD 4.50 BTNC Wireless can be folded. |
| Connectivity Technology | Wired | Wireless | |
| 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) | |
| Active Noise Cancelling | - | Yes | Sennheiser HD 4.50 BTNC Wireless are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | NoiseGard active noise compensation | |
| Noise Isolating | Yes | - | Sennheiser HD 4.20s are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | - | 18 - 22000 Hz | |
| Total Harmonic Distortion (THD) | - | <0.5% | |
| Sensitivity | - | 113 dB | |
| Impedance | - | 18 Ohm | |
| Magnet Material | - | Neodymium | |
| Features | - | Bluetooth aptX technology |
| MICROPHONE | Sennheiser HD 4.20s | Sennheiser HD 4.50 BTNC Wireless |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Microphone Operation Mode | Omni-directional | Omni-directional | |
| Frequency Response | - | 100 - 10000 Hz | |
| Sensitivity | -44 dBV/Pascal | - | |
| Microphones Included | - | 2 |
| REMOTE CONTROL | Sennheiser HD 4.20s | Sennheiser HD 4.50 BTNC Wireless |
|---|
| Controls | 1-button remote | Power on/off, volume control, answer/end, hold, play/pause, next/previous track, reject call, redial |
|---|
| CABLE | Sennheiser HD 4.20s | Sennheiser HD 4.50 BTNC Wireless |
|---|
| Cable Type | - | Headphones cable - detachable - L shaped - 1.4 m Micro-USB charge cable - detachable |
|
|---|---|---|---|
| Cable Length | 1.4 m | 1.4 m | |
| Detachable Cable | - | Yes | |
| Plated Connector | Gold | Gold |
| BATTERY AND CHARGING | Sennheiser HD 4.20s | Sennheiser HD 4.50 BTNC Wireless |
|---|
| Battery Type | - | Headphone battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Capacity | - | 600 mAh | |
| Battery Life | - | 25 hour(s) | |
| Charging Time | - | 2 hour(s) |
| CONNECTIONS | Sennheiser HD 4.20s | Sennheiser HD 4.50 BTNC Wireless |
|---|
| Connector Type | Headphones (mini-phone 3.5 mm 4-pole) | Headphones (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | Sennheiser HD 4.20s | Sennheiser HD 4.50 BTNC Wireless |
|---|
| Included Accessories | - | Carrying case, micro-USB charging cable | |
|---|---|---|---|
| Service & Support | Limited warranty - parts and labour - 2 years | - |
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