Side by side comparison and review of Audio-Technica ATH CKR7TW and OPPO Enco W31. 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 | Audio-Technica ATH CKR7TW | OPPO Enco W31 |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 8 g | 50 g | Audio-Technica ATH CKR7TW are lighter than Audio-Technica ATH CKR7TW headphones. |
| Dimensions & Weight Details | Headphones: 8 g Charging case: 75 g |
- | |
| Colour | Grey | Black | White | |
| Protection | - | Dust-resistant, IP54, water-resistant | |
| Recommended Use | - | Portable electronics | |
| Bluetooth Range (Operating Distance) | 10 m | 10 m | The maximum operating distance of both headphones is the same. |
| SOUND QUALITY | Audio-Technica ATH CKR7TW | OPPO Enco W31 |
|---|
| 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, aptX | AAC | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 5 - 45000 Hz | 20 - 20000 Hz | Audio-Technica ATH CKR7TW offer a larger frequency range than OPPO Enco W31. |
| Max Input Power | 100 mW | - | |
| Sensitivity | - | 95 dB | |
| Impedance | 16 Ohm | - | |
| Diaphragm | 11 mm | Graphene - 7 mm | Audio-Technica ATH CKR7TW have a thicker diaphragm than OPPO Enco W31. |
| Features | True wireless | - |
| MICROPHONE | Audio-Technica ATH CKR7TW | OPPO Enco W31 |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Operation Mode | Omni-directional | - | |
| Noise Cancelling | - | Yes | OPPO Enco W31 microphone can cancel out ambient noise. |
| Frequency Response | 100 - 10000 Hz | - | |
| Sensitivity | -38 dB | -38 dBV/Pascal |
| REMOTE CONTROL | Audio-Technica ATH CKR7TW | OPPO Enco W31 |
|---|
| Controls | Volume, answer/end | Next/previous track, voice assistant |
|---|
| CABLE | Audio-Technica ATH CKR7TW | OPPO Enco W31 |
|---|
| Cable Type | USB charge cable - detachable - 30 cm | USB charge cable - detachable |
|---|
| FEATURES | Audio-Technica ATH CKR7TW | OPPO Enco W31 |
|---|
| Sensors | - | Touch sensor |
|---|
| BATTERY AND CHARGING | Audio-Technica ATH CKR7TW | OPPO Enco W31 |
|---|
| Battery Type | Headphone battery rechargeable - lithium polymer | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 25 mAh | |
| Battery Life | 6 hour(s) | 3.5 hour(s) | Audio-Technica ATH CKR7TW lasts longer on a single charge than the OPPO Enco W31. |
| Battery Life Details | - | Continuous playback (with included charging case): up to 15 hours Continuous playback: up to 3.5 hours |
|
| Charging Time | 2 hour(s) | 2.5 hour(s) | Audio-Technica ATH CKR7TW recharge faster than Audio-Technica ATH CKR7TW. |
| Included Qty | - | 2 |
| OTHERS | Audio-Technica ATH CKR7TW | OPPO Enco W31 |
|---|
| Included Accessories | Charging case / portable power bank, 4 pairs of ear tips (XS, small, medium, large) | Ear tips kit, USB charge cable, charging case (350 mAh) | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | - |
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