In depth comparison and review of Sennheiser CX 400BT and Xiaomi MI True Wireless Earphones 2S. 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 CX 400BT | Xiaomi MI True Wireless Earphones 2S |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | - | 4.5 g | |
| Dimensions & Weight Details | Earbud: 6 g Charging case: 37 g |
Earphone: 4.5 g Charging case with earphones: 52 g |
|
| Colour | White | Black | - | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Sennheiser CX 400BT | Xiaomi MI True Wireless Earphones 2S |
|---|
| Headphones Form Factor | In-ear | Ear-bud | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 5.1 | Bluetooth 5.0 | Sennheiser CX 400BT have a more advanced version of Bluetooth than Xiaomi MI True Wireless Earphones 2S. |
| 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 | SBC, AAC, LHDC | |
| Sound Output Mode | Stereo | - | |
| Frequency Response | 5 - 21000 Hz | - | |
| Total Harmonic Distortion (THD) | 0.08% | - | |
| Impedance | - | 32 Ohm | |
| Max Sound Pressure | 107 dB | - | |
| Diaphragm | 7 mm | 14.2 mm | Xiaomi MI True Wireless Earphones 2S have a thicker diaphragm than Sennheiser CX 400BT. |
| MICROPHONE | Sennheiser CX 400BT | Xiaomi MI True Wireless Earphones 2S |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Noise Cancelling | - | Yes | Xiaomi MI True Wireless Earphones 2S microphone can cancel out ambient noise. |
| Noise Cancelling Technology | - | Environmental Noise Cancellation (ENC) |
| REMOTE CONTROL | Sennheiser CX 400BT | Xiaomi MI True Wireless Earphones 2S |
|---|
| Controls | Volume control, answer/end, play/pause, next/previous track, reject call, pair mode, voice assistant, equaliser preset | Answer/end, play/pause, voice assistant |
|---|
| CABLE | Sennheiser CX 400BT | Xiaomi MI True Wireless Earphones 2S |
|---|
| Cable Type | USB-C to USB-A cable - detachable - straight - 25 cm | USB-C charge cable - detachable |
|---|
| FEATURES | Sennheiser CX 400BT | Xiaomi MI True Wireless Earphones 2S |
|---|
| Features | Voice alerts, touch control | - | |
|---|---|---|---|
| Intelligent Assistant | Siri, Google Assistant | - | |
| Sensors | - | Infrared (IR) sensor |
| BATTERY AND CHARGING | Sennheiser CX 400BT | Xiaomi MI True Wireless Earphones 2S |
|---|
| Battery Type | Headphone battery rechargeable - Lithium Ion | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Capacity | 55 mAh | - | |
| Battery Life | 7 hour(s) | 5 hour(s) | Sennheiser CX 400BT lasts longer on a single charge than the Xiaomi MI True Wireless Earphones 2S. |
| Battery Life Details | Continuous playback (50% volume): up to 7 hours Continuous playback (with included charging case): up to 20 hours |
Continuous playback: up to 5 hours Continuous playback (with included charging case): up to 24 hours |
|
| Wireless Charging Standards | - | Qi | |
| Charging Time | 1.5 hour(s) | 1 hour(s) | Xiaomi MI True Wireless Earphones 2S recharge faster than Sennheiser CX 400BT. |
| Included Qty | 2 | - |
| WIRELESS LINK | Sennheiser CX 400BT | Xiaomi MI True Wireless Earphones 2S |
|---|
| Radio Transmitter Power | 10 mW | - |
|---|
| CONNECTIONS | Sennheiser CX 400BT | Xiaomi MI True Wireless Earphones 2S |
|---|
| Connector Type | - | Bluetooth USB (power only) (24 pin USB-C) |
|---|
| OTHERS | Sennheiser CX 400BT | Xiaomi MI True Wireless Earphones 2S |
|---|
| Included Accessories | 4 pairs of earpads (extra small, small, medium, large), charging case (420 mAh) | Charging case, USB-C charging cable | |
|---|---|---|---|
| Compliant Standards | Bluetooth Class 1, Directive 2006/66/EC, WEEE 2012/19/EU, Directive 2013/56/EU | - | |
| Service & Support | - | 2-year warranty |
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