





OnePlus Buds 4 (E513A)
- International stock, 1-2 days fast dispatch.
- Estimated Delivery Time Frame: 5-7 Business days
- One Year Australian Seller Warranty.

Product Overview
- International stock, 1-2 days fast dispatch.
- Estimated Delivery Time Frame: 5-7 Business days
- One Year Australian Seller Warranty.
- Due to health and hygiene reasons, headphones and some wearables can only be returned for a full refund if they are unopened within 30 days of purchase and are completely sealed or faulty. For this reason, if you change your mind about your purchase of headphones or wearable product they must be completely unopened.
The OnePlus Buds 4 (E513A) push the limits of premium sound and intelligent connectivity, designed for listeners who demand immersive audio and reliable performance. Equipped with a dual-driver setup a powerful 11 mm woofer paired with a refined 6 mm tweeter these earbuds deliver a wide, detailed soundstage from deep lows to crystal-clear highs, covering frequencies from 15 Hz to 40 kHz. Real-time adaptive active noise cancellation intelligently adjusts to your surroundings, blocking up to 55 dB of ambient noise while maintaining natural-sounding transparency when needed. Whether you’re enjoying Hi-Res tracks with the LHDC 5.0 codec or attending a call in a busy cafe three high-sensitivity microphones per side and an AI noise suppression system ensure your voice sounds crisp and confident in every conversation.
Engineered for nonstop performance, the Buds 4 last up to 45 hours with the compact charging case, while Warp Fast Charging delivers 3.5 hours of playback in just 10 minutes. The ergonomic design lightweight at only 4.73 g per earbud combines comfort with IP55-rated dust and water resistance. Supported by Bluetooth 5.4 with Steady Connect, Google Fast Pair, HeyMelody app controls, and dual-device pairing, the experience is seamless across devices. Plus, OnePlus’s exclusive 3D Audio, Sound Master EQ, and Golden Sound personalization bring studio-grade immersion to every beat. Smart, durable, and brilliantly tuned—OnePlus Buds 4 redefine what wireless sound can do.
Product Specification
| Model | OnePlus Buds 4 (E513A) |
| Design | In-Ear, True Wireless Earbuds |
| Dimensions | Earphone: 31 × 20.6 × 24.2 mm | Charging Case: 65.4 × 52.4 × 25.3 mm |
| Weight | Earphone: 4.73 ± 0.2 g | Case: 39.57 ± 1 g | Total: 49.02 ± 1 g |
| Driver | 11 mm Woofer + 6 mm Tweeter (Dual Driver Setup) |
| Frequency Response | 15 Hz – 40 kHz |
| Driver Sensitivity | 118 ± 1.3 dB @ 1 mW |
| Microphone Sensitivity | –38 ± 1 dB |
| Microphones | 3 per earbud (6 total) |
| Impedance | 18 O ± 15% / 10 O ± 15% |
| Sound Pressure | 96.5 dB |
| Rated Power | 10 mW |
| Noise Cancelling | Real-time Adaptive ANC (up to 55 dB) | Modes: ANC On / Adaptive / Transparent / Off |
| Call Noise Reduction | 3-Microphone AI Call Noise Cancellation |
| Bluetooth Version | Bluetooth 5.4 with Steady Connect |
| Bluetooth Codec | LHDC 5.0 / AAC / SBC |
| Transmission Protocols | HFP / A2DP / AVRCP |
| Effective Distance | 10 m |
| Connectivity Features | Google Fast Pair | Dual Device Connection |
| Battery Capacity | Earphone: 62 mAh | Case: 530 mAh |
| Playback Time (ANC Off, AAC) | Earbuds: 11 h | With Case: 45 h |
| Playback Time (ANC On, AAC) | Earbuds: 6 h | With Case: 24 h |
| Playback Time (LHDC, ANC Off) | Earbuds: 9 h | With Case: 37 h |
| Playback Time (LHDC, ANC On) | Earbuds: 5.5 h | With Case: 22 h |
| Talk Time (ANC Off) | Earbuds: 6 h | With Case: 24 h |
| Talk Time (ANC On) | Earbuds: 4 h | With Case: 17 h |
| Fast Charging | 10 min charge = 3.5 h playback (earbuds) | 11 h total with case |
| Charging Time | Earbuds: ˜ 50 min | With Case: ˜ 80 min |
| Charging Connector | USB Type-C (Wired) |
| Special Features | OTA Updates, IP55 Dust & Water Resistance, OnePlus 3D Audio, Sound Master EQ, Golden Sound, AI Translation, 47 ms Low Latency, HeyMelody App Support, Voice Assistant Hotkey, Double-Tap Camera Control, Find My Headset |
- Hybrid 11 mm woofer + 6 mm tweeter for Hi-Res sound
- Adaptive Active Noise Cancellation up to 55 dB
- Up to 45 hours of battery life with warp fast charging
- Bluetooth 5.4 with LHDC 5.0 and dual-device connectivity
- IP55 water & dust resistance with HeyMelody app support
Frequently Asked Questions
How do I place my order?
Once you have finished adding items to your shopping cart, point your cursor to the red button saying "ADD TO CART." You will then be transferred to our secure CHECKOUT page to either login to your account if you have or place an order without one.
After providing this information: name and shipping details, you need to choose the shipping method (Standard, Express or P.O. box which takes an extra 5 days). Once done, Kindly proceed to payment terms.
You will now need to enter your payment details. After completing payment, you are asked to choose if you're billing address is same as shipping address or use a different one. Once you are ready to complete your order, click "Complete order." You will receive an on-screen order confirmation, as well as a second confirmation via e-mail.
If you have difficulties in the checkout process, please feel free to contact our customer service support via chat or email.
How do I remove items from my shopping cart?
First, click on the "Cart" icon on the upper right corner of the webpage. This will allow you to check all items that are currently in your shopping cart. Once you have identified the item tha you want to remove, click the X icon on the right side next to the price of the item. Once done, choose update cart and you can now continue shopping or complete your order.
What if I need to change my address?
Please email us or have a chat with our Customer Service support team with your changes. Address changes may need additional approval through our verification process. Please note: If an order is already in transit (package has already left our warehouse), we can no longer change the shipping address for you. You need to contact the courier directly for this request.
Do you offer a wholesale service?
At BuyMobile we provide the best small quantity unit pricing available on every item. Our algorithms run daily to determine the lowest cost in stock supplier.
However if you are looking to purchase multiple items there is an efficiency of scale around sourcing and fulfilment that means we may be able to offer better pricing on a larger order.
If you are a business or looking for a bulk purchase and would like a quote, please fill in our wholesale application form with your details. If you are looking to make regular purchases, we offer credit accounts to vetted customers, so please complete this application.
Once received, our wholesale team will come back to you with price, availability, payment and ETA information.
Do you have more questions?
End-to-end payments and financial management in a single solution. Meet the right platform to help realize.


























