Detailed comparison and review of Sennheiser CX 150BT and JBL Free II. 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 CX 150BT | JBL Free II |
|---|
| Product Type | Earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 12 g | 4.8 g | JBL Free II are lighter than Sennheiser CX 150BT headphones. |
| Dimensions & Weight Details | - | Earphone: 4.8 g Charging case: 52 g |
|
| Colour | Black | White | Black | White | |
| Protection | - | Splashproof, IPX4 | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | 10 m | - |
| SOUND QUALITY | Sennheiser CX 150BT | JBL Free II |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.0 | 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), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | SBC, AAC | - | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 17 - 20000 Hz | 20 - 20000 Hz | Sennheiser CX 150BT offer a larger frequency range than JBL Free II. |
| Total Harmonic Distortion (THD) | 0.5% | - | |
| Sensitivity | - | 100 dB | |
| Impedance | 28 Ohm | 16 Ohm | |
| Max Sound Pressure | 100 dB | 95 dB | |
| Diaphragm | - | 5.6 mm |
| MICROPHONE | Sennheiser CX 150BT | JBL Free II |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Microphone Operation Mode | Omni-directional | - | |
| Sensitivity | - | -38 dBV/Pascal |
| REMOTE CONTROL | Sennheiser CX 150BT | JBL Free II |
|---|
| Controls | 3-button remote | - |
|---|
| CABLE | Sennheiser CX 150BT | JBL Free II |
|---|
| Cable Type | USB-C charge cable | USB-C charge cable |
|---|
| FEATURES | Sennheiser CX 150BT | JBL Free II |
|---|
| Features | - | Touch control |
|---|
| BATTERY AND CHARGING | Sennheiser CX 150BT | JBL Free II |
|---|
| Battery Type | Headphone battery rechargeable | 2 x headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 55 mAh | |
| Battery Life | 10 hour(s) | 6 hour(s) | Sennheiser CX 150BT lasts longer on a single charge than the JBL Free II. |
| Battery Life Details | - | (with included charging case): up to 24 hours | |
| Charging Time | - | 2 hour(s) | |
| Included Qty | - | 2 |
| OTHERS | Sennheiser CX 150BT | JBL Free II |
|---|
| Included Accessories | 4 pairs of ear tips (XS, S,M, L) | 3 pairs of ear tips (small, medium, large), charging case (650 mAh) | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | - |
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