Side by side comparison and review of Sennheiser CX 350BT and OPPO Enco W51. 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 | Sennheiser CX 350BT | OPPO Enco W51 |
|---|
| Product Type | Earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 13 g | 55.5 g | Sennheiser CX 350BT are lighter than Sennheiser CX 350BT headphones. |
| Colour | Black | White | White floral | Starry blue | |
| Protection | - | Dust-resistant, IP54, water-resistant | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Sennheiser CX 350BT | OPPO Enco W51 |
|---|
| 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) | - | |
| Bluetooth Audio Codec | SBC, AAC, apt-X LL | - | |
| Active Noise Cancelling | - | Yes | OPPO Enco W51 are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Total Harmonic Distortion (THD) | 0.5% | - | |
| Sensitivity | - | 103 dB | |
| Max Sound Pressure | 110 dB | - | |
| Diaphragm | - | 7 mm |
| MICROPHONE | Sennheiser CX 350BT | OPPO Enco W51 |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Microphone Operation Mode | Mono | - | |
| Audio Input Details | Omni-directional | - | |
| Sensitivity | - | -38 dBV/Pascal |
| REMOTE CONTROL | Sennheiser CX 350BT | OPPO Enco W51 |
|---|
| Controls | Answer/end, play/pause, next/previous track | - |
|---|
| BATTERY AND CHARGING | Sennheiser CX 350BT | OPPO Enco W51 |
|---|
| Battery Type | - | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 25 mAh | |
| Battery Life | 10 hour(s) | 4 hour(s) | Sennheiser CX 350BT lasts longer on a single charge than the OPPO Enco W51. |
| Battery Life Details | Continuous playback: up to 10 hours Standby: up to 340 hours |
Continuous playback (noise cancelling OFF / cable connection): up to 24 hours Continuous playback (noise cancelling ON / cable connection): up to 20 hours Continuous playback (noise cancelling OFF): up to 4 hours Continuous playback (noise cancelling ON): up to 3.5 hours |
|
| Included Qty | - | 2 |
| OTHERS | Sennheiser CX 350BT | OPPO Enco W51 |
|---|
| Included Accessories | 4 pairs of earpads (extra small, small, medium, large) | Charging case (480 mAh) | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | - |
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