In depth comparison and review of Sennheiser MOMENTUM True Wireless 2 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 | Sennheiser MOMENTUM True Wireless 2 | Sennheiser CX 400BT |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Dimensions & Weight Details | Charging case: 7.68 cm x 4.38 cm x 3.47 cm / 58 g Charging case with earphones: 70 g Earphone: 6 g |
Earbud: 6 g Charging case: 37 g |
|
| Colour | White | Black | White | Black | |
| Protection | Splashproof, IPX4 | - | |
| Recommended Use | Portable electronics | Portable electronics |
| SOUND QUALITY | Sennheiser MOMENTUM True Wireless 2 | 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 5.1 | Bluetooth 5.1 | Both headphones have the same Bluetooth version. |
| 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 | SBC, AAC, aptX | |
| Active Noise Cancelling | Yes | - | Sennheiser MOMENTUM True Wireless 2 are equipped with active noice cancellation. |
| Noise Isolating | Yes | - | Sennheiser MOMENTUM True Wireless 2 are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 5 - 21000 Hz | 5 - 21000 Hz | Both headphones offer the same frequency response. |
| Total Harmonic Distortion (THD) | <0.08% | 0.08% | Both headphones have the same total harmonic distortion. |
| Sensitivity | 107 dB | - | |
| Max Sound Pressure | - | 107 dB | |
| Diaphragm | 7 mm | 7 mm | Both headphones are designed with same thick diaphragm. |
| MICROPHONE | Sennheiser MOMENTUM True Wireless 2 | Sennheiser CX 400BT |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Frequency Response | 100 - 10000 Hz | - |
| REMOTE CONTROL | Sennheiser MOMENTUM True Wireless 2 | Sennheiser CX 400BT |
|---|
| Controls | Volume, answer/end, play/pause | Volume control, answer/end, play/pause, next/previous track, reject call, pair mode, voice assistant, equaliser preset |
|---|
| CABLE | Sennheiser MOMENTUM True Wireless 2 | Sennheiser CX 400BT |
|---|
| Cable Type | USB-C charge cable | USB-C to USB-A cable - detachable - straight - 25 cm |
|---|
| FEATURES | Sennheiser MOMENTUM True Wireless 2 | Sennheiser CX 400BT |
|---|
| Features | - | Voice alerts, touch control | |
|---|---|---|---|
| Voice Control | Indirect | - | |
| Intelligent Assistant | Siri, Google Assistant | Siri, Google Assistant |
| BATTERY AND CHARGING | Sennheiser MOMENTUM True Wireless 2 | Sennheiser CX 400BT |
|---|
| Battery Type | Headphone battery rechargeable - Lithium Ion | 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 28 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) | 1.5 hour(s) | The charging of both headphones last the same time. |
| Included Qty | - | 2 |
| WIRELESS LINK | Sennheiser MOMENTUM True Wireless 2 | Sennheiser CX 400BT |
|---|
| Radio Transmitter Power | - | 10 mW |
|---|
| OTHERS | Sennheiser MOMENTUM True Wireless 2 | Sennheiser CX 400BT |
|---|
| Included Accessories | Charging case, 4 pairs of ear tips (XS, S,M, L) | 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 | |
| Service & Support | Limited warranty - 2 years | - |
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