The OPPO Enco W31 EVA Limited Edition is a run of 10,000 units themed around Rei Ayanami's Unit-00. These Evangelion earbuds are glossy white with a 00 on the stem, dark blue line details and a blue honeycomb panel, finished with white silicone ear tips. The ©khara mark is printed on the stem, so this is licensed Evangelion merch down to the small print.
The charging case keeps the theme going. It is a white rounded pebble with a yellow ring and an EVA 0 logo on the lid, and opening it reveals a Confidential Evangelion print, a NERV mark inside the lid and a gold-ringed button. The gold retail box has a relief of NERV and Unit-00 patterns, with EVA00 Prototype lettering and yellow and gray Unit-00 art, and a NERV-colored charging cable finishes the set.
Underneath, these are the OPPO Enco W31 true wireless earbuds. The 7 mm drivers connect over Bluetooth 5.0 with latency as low as 94 ms, and dual microphones with AI noise reduction help on calls. You get 3.5 hours of listening and up to 15 hours with the case, and a 10-minute charge gives about an hour. Touch controls handle calls and track changes, IP54 protects against dust and splashes, and they work with Android and iOS.
Product highlights
- Limited to 10,000 units
- Unit-00 design with the ©khara mark
- Yellow ring and EVA 0 logo on the case
- 7 mm drivers and Bluetooth 5.0
- Up to 15 hours with the case
- IP54 dust and splash resistance
Spec
| Model | OPPO Enco W31, EVA Limited Edition |
| Edition | China release, limited to 10,000 units |
| Series | Evangelion, ©khara |
| Drivers | 7 mm |
| Bluetooth | 5.0, about 10 m range |
| Latency | 94 ms, both earbuds |
| Microphones | Dual, AI noise reduction |
| Controls | Touch |
| Battery life | 3.5 hours, up to 15 hours with case About 1 hour from a 10-minute charge |
| Battery | Earbuds 25 mAh each, case 350 mAh |
| Charging | USB Type-C |
| Water and dust resistance | IP54 |
| Compatibility | Android, iOS |
| Weight | 4.6 g per earbud; 50 g case |
| Box Contents | Earbuds Charging case NERV-colored charging cable White ear tips |
Orders are normally processed within 3 business days. Delivery times start after dispatch. Bulky items such as PC cases ship by sea freight; see the product description for timing.
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At checkout, free Expedited appears as “Free Shipping”. The US$200 order value is after discounts.
Import duties, taxes and clearance fees may apply and are not included. In the United States, all duties and taxes are the buyer's responsibility upon arrival. Tracking is provided after dispatch.
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Returns & Refunds
Changed your mind? Eligible unused and unopened items may be returned within 30 days of delivery.
- Change-of-mind returns are subject to a 10% restocking fee.
- Customers are responsible for return shipping and applicable customs charges.
- Items must be unused, unopened, and returned in their original condition and packaging.
Damaged, Defective or Incorrect Item?
Please contact us as soon as possible, preferably within
3 calendar days of delivery. Approved defective, damaged-on-arrival,
or incorrect-item claims are not subject to the 10% restocking fee.
Refunds are normally processed within 3–5 business days after an approved return has been received and inspected.
