In depth comparison and review of Microsoft Surface Earbuds and Sennheiser CX 400BT. 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 | Microsoft Surface Earbuds | Sennheiser CX 400BT |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Dimensions & Weight Details | Charging case: 7.5 cm x 3.32 cm x 2.5 cm / 40 g Earbud: 2.5 cm x 2.5 cm x 1.99 cm / 7.2 g |
Earbud: 6 g Charging case: 37 g |
|
| Colour | Glacier | White | Black | |
| Protection | Waterproof, IPX4 | - | |
| Recommended Use | - | Portable electronics |
| SOUND QUALITY | Microsoft Surface Earbuds | Sennheiser CX 400BT |
|---|
| Headphones Form Factor | Ear-bud | In-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.1 | Bluetooth 5.1 | Sennheiser CX 400BT have a more advanced version of Bluetooth than Microsoft Surface Earbuds. |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | SBC, aptX | SBC, AAC, aptX | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 5 - 21000 Hz | Sennheiser CX 400BT offer a larger frequency range than Microsoft Surface Earbuds. |
| Total Harmonic Distortion (THD) | - | 0.08% | |
| Max Sound Pressure | - | 107 dB | |
| Diaphragm | 13.6 mm | 7 mm | Microsoft Surface Earbuds have a thicker diaphragm than Sennheiser CX 400BT. |
| MICROPHONE | Microsoft Surface Earbuds | Sennheiser CX 400BT |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphones Included | 2 | - |
| REMOTE CONTROL | Microsoft Surface Earbuds | Sennheiser CX 400BT |
|---|
| Controls | Volume, answer/end, next/previous track | Volume control, answer/end, play/pause, next/previous track, reject call, pair mode, voice assistant, equaliser preset |
|---|
| CABLE | Microsoft Surface Earbuds | Sennheiser CX 400BT |
|---|
| Cable Type | - | USB-C to USB-A cable - detachable - straight - 25 cm |
|---|
| FEATURES | Microsoft Surface Earbuds | Sennheiser CX 400BT |
|---|
| Features | - | Voice alerts, touch control | |
|---|---|---|---|
| Intelligent Assistant | - | Siri, Google Assistant |
| BATTERY AND CHARGING | Microsoft Surface Earbuds | Sennheiser CX 400BT |
|---|
| Battery Type | Headphone battery rechargeable | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 55 mAh | |
| Battery Life | 7 hour(s) | 7 hour(s) | Both headphones last the same amount of time on a single charge. |
| Battery Life Details | Continuous playback: up to 7 hours Continuous playback (with included charging case): up to 24 hours |
Continuous playback (50% volume): up to 7 hours Continuous playback (with included charging case): up to 20 hours |
|
| Charging Time | - | 1.5 hour(s) | |
| Included Qty | - | 2 |
| WIRELESS LINK | Microsoft Surface Earbuds | Sennheiser CX 400BT |
|---|
| Radio Transmitter Power | - | 10 mW |
|---|
| OTHERS | Microsoft Surface Earbuds | Sennheiser CX 400BT |
|---|
| Included Accessories | Charging case, 3 pairs of silicone ear tips (small, medium, large), USB-C to USB-A cable | 4 pairs of earpads (extra small, small, medium, large), charging case (420 mAh) | |
|---|---|---|---|
| Compatibility | iPhone, iPad, iPod, Android phone, Windows | - | |
| Compliant Standards | - | Bluetooth Class 1, Directive 2006/66/EC, WEEE 2012/19/EU, Directive 2013/56/EU | |
| Service & Support | Limited warranty - 1 year | - |
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