Overview


Discover the Open Box OnePlus Buds 4 (E513A): Featuring advanced Adaptive Active Noise Cancellation up to 50dB and high-fidelity dual drivers for deep, resonant bass and crystal-clear trebles. The ultimate audio companion with LHDC 5.0 support and personalized audio profiles for a studio-grade listening experience. Equipped with a massive 44-hour total battery life, IP55 water and sweat resistance, and ultra-low latency for seamless gaming and media synchronization. Shop now!

Specifications

Product details

The OnePlus Buds 4 True Wireless Earbuds deliver premium audio performance, advanced noise cancellation, and all-day comfort in a sleek, ergonomic design. Engineered with dual drivers — an 11 mm woofer and a 6 mm tweeter — each powered by independent DACs, these earbuds produce rich bass, detailed mids, and clear highs across a wide frequency range. They support Hi-Res Wireless Audio via LHDC 5.0 for high-resolution streaming on compatible Android devices.

Adaptive Active Noise Cancellation (ANC) reduces ambient noise by up to 55 dB, helping you stay focused in loud environments, while Transparency Mode lets in sound when you need situational awareness. With Bluetooth 5.4 and Steady Connect technology, pairing is fast and the wireless connection remains stable up to 10 m. A triple-microphone array with AI noise reduction boosts call clarity and voice pickup.

Enjoy flexible listening with up to 45 hours of total battery life with the charging case and up to 11 hours on a single charge. Fast charging provides up to 11 hours of playback from just 10 minutes of charging. Additional features like 3D Spatial Audio, Game Mode (low latency), and AI Translation enhance multimedia, gaming, and communication experiences. The earbuds are also rated IP55 for dust and water resistance, making them suitable for daily use and active lifestyles.

Key Features

  • Dual-driver system with 11 mm woofer and 6 mm tweeter for balanced, detailed sound

  • Hi-Res Wireless Audio support via LHDC 5.0

  • Up to 55 dB Adaptive ANC with Transparency Mode

  • Bluetooth 5.4 with Steady Connect for stable pairing

  • Up to 45 h total battery life with charging case

  • Fast charging: 10 min ≈ 11 h playback

  • Triple-mic system with AI call noise reduction

  • 3D Spatial Audio and personalized sound profiles

  • Gaming Mode with low latency (≈ 47 ms)

  • IP55 dust and water resistance

Model: E513A

Shipping and returns

Please be advised that delivery dates are estimates provided to Swiftronics from the couriers we have partnered with. Deliveries to rural locations may experience delays by up to 2 business days which is beyond our control. It is the buyers responsibility to be informed if their location falls under rural.

Shipping times may vary depending on the shipping destination and the shipping method selected. Please note that for any reason due to circumstances beyond our control shipping may be delayed (inclement weather, lost or stolen packages etc.)

Delivery of your order is subject to the availability of inventory from our Distribution Centre. Orders placed for in-stock products will typically be processed and shipped within one business day from our distribution centre and are included in the transit times.

Orders are processed and shipped Monday through Friday. We do not process or ship orders on Saturdays, Sundays or Holidays.

Pre-ordered products will be shipped within one business day of the expected ship date on the product page. Some orders may be delayed without notice due to shipping or production issues from the product manufacturer, in which case the order will be processed and shipped upon product availability. If a product is delayed beyond the expected ship date or is cancelled by the manufacturer, you will be notified via email or telephone and the order will be cancelled.

We may divide your order into multi-shipments depending on the availability of the products at the time of processing. In these instances, you will only be charged once for shipping.

  1. Not only do we offer reasonable prices and service, but we stand behind fair and ethical practices. If after receiving your item and you decide not to keep it, we ask that returns be made within 30 days of the item's receipt. Return shipping will be covered by the buyer.
  2. Items that have been used or show signs of usage, will be subject to a restocking fee no less than 20% of the original selling price will be applied to the current sales price. Swiftronics reserves the right to inspect any item before approving a refund.
  3. Requests for order cancellations made prior to shipping will be refunded minus 3% for transaction fees associated with the order.
  4. We offer a 30 day domestic warranty on all of our international devices which will be issued as a repair or a replacement if a repair is not feasible. This warranty applies to product defects and failures only. All warranty claims placed 30 days after the date of receipt will be redirected to the product manufacturer and will be subject to manufacturer’s discretion and return policies. Under no circumstances will liquid or physical damage be covered by warranty.
  5. All accessories, home theatre items, wearables and open box devices are final sale.
  6. In the event of receiving an item that is defective on arrival (DOA) please contact us right away so we can replace the item.

FAQs

Q: Do I have to pay for return shipping if I want to exchange a product?

A: In the event of the buyer purchasing an item and deciding not to keep it for any reason other than manufacturer defect, return shipping will be paid by the buyer.

Q: What should I do if I receive a defective product?

A: In the event of receiving an item that is defective, please contact us so we can make it right. We also cover return shipping.

Q: How long will it take for my items to arrive?

A: We offer Standard (3-4 Business Days) and Next Day (1 Business Day) shipping. If your order is placed prior to 2:00pm EST, we will ship your order within the same day. Otherwise, we will ship on the following business day. The amount of time it actually takes for your order to reach its destination depends on your shipping method and courier delivery standards. Example 1: If your order is placed on Monday at 11:00am, and you chose Expedited, you should expect to receive your order between Wednesday and Friday (end of day).

Please note that shipping times are estimates that are provided to us by our shipping partners. Swiftronics is not liable for any delays in shipping times that are a result of shipping carriers.

Please ensure that shipping details are entered correctly, we ship based on the information provided to us. Any shipment that is returned to sender will be covered at the buyers expense.

Q: Do you ship across the United States?

A: Yes, we ship across the U.S., including Puerto Rico, Hawaii, and Alaska.

Q: Who do you ship with?

A: We ship with FedEx and Canada Post, depending on your location and shipping method selected.

• Please note that purchases over $250 CAD require a Signature upon Delivery.

Q: What is your return policy?

A: If the item has been used or shows signs of usage, a re-stocking fee no less than 20% of the original selling price will be applied to the current price. Swiftronics reserves the right to inspect any item before approving a refund.

At Swiftronics we offer a 30 day warranty on all our international devices which will be issued as a repair or a replacement if a repair is not feasible. This warranty applies to product defects and failures only. All warranty claims placed 30 days after the date of receipt will be redirected to the product manufacturer and will be subject to manufacturer’s warranties and return policies. Under no circumstances will liquid or physical damage be covered by warranty.

*Wearables, Accessories, and TV boxes are NOT eligible for returns due to hygienic reasons*

Q: How can I leave feedback for Swiftronics?

A: You can leave feedback on any of our social media platforms. We’re connected via Facebook, Google, Instagram & Yelp.

Q: Do you offer an Extended Warranty for Devices?

A:Yes, Swiftronics does offer an extended warranty program through Surebright. This warranty covers both mechanical breakdowns and accidental damage. The warranty period can vary from one to three years, depending on the product.

For more detailed information and to see the available options, please visit the product page of the item you are interested in purchasing additional coverage for.

Purchases of additional warranty coverage are non-refundable

Q: Do you Price match?

A: We do not price match.

Q: Does your In-Store pricing differ from your Online Store?

A: Whether you choose to buy online or in-store, the prices are the same.

Question: What is an open box item?

A: Open box items are items that were either show cased in store, tested by our associates or returned under buyers remorse within 30 days. All of our open box items have been rigorously tested and have passed our checklist of being sellable. Please note that open box devices may not include headphones for hygienic reasons and would need to be purchased separately. We offer an extended 90 day guarantee on all of our open box items. Physical conditions may vary.

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