Detailed comparison and review of Audio-Technica ATH CKR75BT and OPPO Enco W31. 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 | Audio-Technica ATH CKR75BT | OPPO Enco W31 |
|---|
| Product Type | Earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 17.8 g | 50 g | Audio-Technica ATH CKR75BT are lighter than Audio-Technica ATH CKR75BT headphones. |
| Colour | Metallic gunmetal | Black | White | |
| Body Material | Aluminium | - | |
| Protection | - | Dust-resistant, IP54, water-resistant | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Audio-Technica ATH CKR75BT | 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 4.1 | Bluetooth 5.0 | OPPO Enco W31 have a more advanced version of Bluetooth than Audio-Technica ATH CKR75BT. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
| Bluetooth Audio Codec | - | AAC | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 5 - 40000 Hz | 20 - 20000 Hz | Audio-Technica ATH CKR75BT offer a larger frequency range than OPPO Enco W31. |
| Sensitivity | 108 dB/mW | 95 dB | Audio-Technica ATH CKR75BT have higher sensitivity than OPPO Enco W31. |
| Impedance | 19 Ohm | - | |
| Diaphragm | 11.8 mm | Graphene - 7 mm | Audio-Technica ATH CKR75BT have a thicker diaphragm than OPPO Enco W31. |
| Features | Bluetooth aptX technology | - |
| MICROPHONE | Audio-Technica ATH CKR75BT | OPPO Enco W31 |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Microphone Technology | Electret condenser | - | |
| Microphone Operation Mode | Omni-directional | - | |
| Noise Cancelling | - | Yes | OPPO Enco W31 microphone can cancel out ambient noise. |
| Frequency Response | 100 - 10000 Hz | - | |
| Sensitivity | -44 dBV/Pascal | -38 dBV/Pascal |
| REMOTE CONTROL | Audio-Technica ATH CKR75BT | OPPO Enco W31 |
|---|
| Controls | Remote control | Next/previous track, voice assistant |
|---|
| CABLE | Audio-Technica ATH CKR75BT | OPPO Enco W31 |
|---|
| Cable Type | - | USB charge cable - detachable |
|---|
| FEATURES | Audio-Technica ATH CKR75BT | OPPO Enco W31 |
|---|
| Sensors | - | Touch sensor | |
|---|---|---|---|
| Additional Functions | Amplifier | - |
| BATTERY AND CHARGING | Audio-Technica ATH CKR75BT | OPPO Enco W31 |
|---|
| Battery Type | Headphone battery rechargeable - lithium polymer | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 25 mAh | |
| Battery Life | 7 hour(s) | 3.5 hour(s) | Audio-Technica ATH CKR75BT 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 |
|
| Standby Time | 200 hours | - | |
| Charging Time | 3 hour(s) | 2.5 hour(s) | OPPO Enco W31 recharge faster than Audio-Technica ATH CKR75BT. |
| Included Qty | - | 2 |
| WIRELESS LINK | Audio-Technica ATH CKR75BT | OPPO Enco W31 |
|---|
| Modulation Type | FHSS | - | |
|---|---|---|---|
| Radio Transmitter Power | 0.7 mW | - | |
| Radio Frequency Range | 2.402 - 2.480GHz | - |
| OTHERS | Audio-Technica ATH CKR75BT | OPPO Enco W31 |
|---|
| Included Accessories | Carrying case, headphones wire clip, 4 pairs of earpads (extra small, small, medium, large), micro-USB charging cable (30cm) | Ear tips kit, USB charge cable, charging case (350 mAh) |
|---|
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