Side by side comparison and review of Jaybird X2 and Sennheiser CX 400BT. 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 | Jaybird X2 | Sennheiser CX 400BT |
|---|
| Product Type | Earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Width | 2.3 cm | - | |
| Depth | 1.3 cm | - | |
| Weight | 13.8 g | - | |
| Dimensions & Weight Details | Control unit: 2.2 cm x 1.3 cm x 2.9 cm | Earbud: 6 g Charging case: 37 g |
|
| Colour | Alpha | Charge | Fire | Midnight | Storm | Ice | White | Black | |
| Protection | Dust-resistant, sweat-resistant | - | |
| Design | Sports | - | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | 10 m | - |
| SOUND QUALITY | Jaybird X2 | Sennheiser CX 400BT |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 2.1 EDR | Bluetooth 5.1 | Sennheiser CX 400BT have a more advanced version of Bluetooth than Jaybird X2. |
| Bluetooth Profiles | 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 | |
| Noise Isolating | Yes | - | Jaybird X2 are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 5 - 21000 Hz | Sennheiser CX 400BT offer a larger frequency range than Jaybird X2. |
| Total Harmonic Distortion (THD) | <5% | 0.08% | Sennheiser CX 400BT have lower total harmonic distortion than Jaybird X2. |
| Sensitivity | 103 dB | - | |
| Impedance | 16 Ohm | - | |
| Max Sound Pressure | - | 107 dB | |
| Diaphragm | 6 mm | 7 mm | Sennheiser CX 400BT have a thicker diaphragm than Jaybird X2. |
| Simultaneously Connectable Devices Qty (Multipoint) | 8 | - | Jaybird X2 have the ability to connect to multiple devices simultaneously. |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | Jaybird X2 | Sennheiser CX 400BT |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Microphone Operation Mode | Omni-directional | - | |
| Audio Input Details | Omni-directional | - | |
| Sensitivity | -38 dB | - |
| REMOTE CONTROL | Jaybird X2 | Sennheiser CX 400BT |
|---|
| Controls | Power on/off, volume control | Volume control, answer/end, play/pause, next/previous track, reject call, pair mode, voice assistant, equaliser preset |
|---|
| CABLE | Jaybird X2 | Sennheiser CX 400BT |
|---|
| Cable Type | USB charge cable | USB-C to USB-A cable - detachable - straight - 25 cm | |
|---|---|---|---|
| Cable Length | 54 cm | - |
| FEATURES | Jaybird X2 | Sennheiser CX 400BT |
|---|
| Features | - | Voice alerts, touch control | |
|---|---|---|---|
| Intelligent Assistant | - | Siri, Google Assistant |
| BATTERY AND CHARGING | Jaybird X2 | Sennheiser CX 400BT |
|---|
| Battery Type | Headphone battery rechargeable - lithium polymer | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 100 mAh | 55 mAh | Jaybird X2 have a higher battery capacity than Sennheiser CX 400BT. |
| Battery Life | 8 hour(s) | 7 hour(s) | Jaybird X2 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 |
|
| Standby Time | 200 hours | - | |
| Charging Time | 2.5 hour(s) | 1.5 hour(s) | Sennheiser CX 400BT recharge faster than Jaybird X2. |
| Included Qty | - | 2 |
| WIRELESS LINK | Jaybird X2 | Sennheiser CX 400BT |
|---|
| Transmission Range | 10 m | - | |
|---|---|---|---|
| Radio Transmitter Power | - | 10 mW | |
| Radio Frequency Range | 2.4GHz | - |
| OTHERS | Jaybird X2 | Sennheiser CX 400BT |
|---|
| Included Accessories | Carrying case, 3 pairs of silicone ear tips, USB charging cable, 3 pairs of Comply foam ear tips, cord management clips, 3 sizes secure-fit ear fins | 4 pairs of earpads (extra small, small, medium, large), charging case (420 mAh) | |
|---|---|---|---|
| Compatibility | iPhone, iPad, iPod, Android phone, BlackBerry, Windows phone | - | |
| 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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