Detailed comparison and review of Sennheiser MOMENTUM M2 IEBT and Sennheiser CX 400BT. With our comprehensive overview, you can simply compare design, sound quality, but also other key features of both headphones and easily decide which ones are the right choice for you. Our goal is to help you identify the main differences between products and find the headphones that best fit your needs and expectations.
| DESIGN AND DIMENSIONS | Sennheiser MOMENTUM M2 IEBT | Sennheiser CX 400BT |
|---|
| Product Type | Earphones - Bluetooth - wireless - NFC | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 53 g | - | |
| Dimensions & Weight Details | - | Earbud: 6 g Charging case: 37 g |
|
| Colour | Black | White | Black | |
| Earpad Material | Stainless steel | - | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | 10 m | - |
| SOUND QUALITY | Sennheiser MOMENTUM M2 IEBT | Sennheiser CX 400BT |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | 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 Sennheiser MOMENTUM M2 IEBT. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | - | SBC, AAC, aptX | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 15 - 22000 Hz | 5 - 21000 Hz | Sennheiser MOMENTUM M2 IEBT offer a larger frequency range than Sennheiser CX 400BT. |
| Total Harmonic Distortion (THD) | <0.5% | 0.08% | Sennheiser CX 400BT have lower total harmonic distortion than Sennheiser MOMENTUM M2 IEBT. |
| Sensitivity | 112 dB | - | |
| Impedance | 18 Ohm | - | |
| Max Sound Pressure | - | 107 dB | |
| Diaphragm | - | 7 mm | |
| Simultaneously Connectable Devices Qty (Multipoint) | 2 | - | Sennheiser MOMENTUM M2 IEBT have the ability to connect to multiple devices simultaneously. |
| Features | Voice guidance | - |
| MICROPHONE | Sennheiser MOMENTUM M2 IEBT | Sennheiser CX 400BT |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Operation Mode | Omni-directional | - | |
| Frequency Response | 100 - 10000 Hz | - | |
| Sensitivity | -44 dBV/Pascal | - |
| REMOTE CONTROL | Sennheiser MOMENTUM M2 IEBT | Sennheiser CX 400BT |
|---|
| Controls | Power on/off, volume control, play/pause button, next/previous track | Volume control, answer/end, play/pause, next/previous track, reject call, pair mode, voice assistant, equaliser preset |
|---|
| CABLE | Sennheiser MOMENTUM M2 IEBT | Sennheiser CX 400BT |
|---|
| Cable Type | Micro-USB charge cable - detachable | USB-C to USB-A cable - detachable - straight - 25 cm |
|---|
| FEATURES | Sennheiser MOMENTUM M2 IEBT | Sennheiser CX 400BT |
|---|
| Features | - | Voice alerts, touch control | |
|---|---|---|---|
| Intelligent Assistant | - | Siri, Google Assistant |
| BATTERY AND CHARGING | Sennheiser MOMENTUM M2 IEBT | Sennheiser CX 400BT |
|---|
| Battery Type | Headphone battery rechargeable - lithium polymer | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 170 mAh | 55 mAh | Sennheiser MOMENTUM M2 IEBT have a higher battery capacity than Sennheiser CX 400BT. |
| Battery Life | 10 hour(s) | 7 hour(s) | Sennheiser MOMENTUM M2 IEBT lasts longer on a single charge than the Sennheiser CX 400BT. |
| Battery Life Details | - | Continuous playback (50% volume): up to 7 hours Continuous playback (with included charging case): up to 20 hours |
|
| Charging Time | 1.5 hour(s) | 1.5 hour(s) | The charging of both headphones last the same time. |
| Included Qty | - | 2 |
| WIRELESS LINK | Sennheiser MOMENTUM M2 IEBT | Sennheiser CX 400BT |
|---|
| Transmission Range | 10 m | - | |
|---|---|---|---|
| Radio Transmitter Power | - | 10 mW |
| OTHERS | Sennheiser MOMENTUM M2 IEBT | Sennheiser CX 400BT |
|---|
| Included Accessories | Carrying case, 4 pairs of ear tips (supersmall, small, medium, large) | 4 pairs of earpads (extra small, small, medium, large), charging case (420 mAh) | |
|---|---|---|---|
| Compliant Standards | - | Bluetooth Class 1, Directive 2006/66/EC, WEEE 2012/19/EU, Directive 2013/56/EU |
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