OnePlus Nord Buds 4 Pro Black TWS Wireless Earbuds with Active Noise Cancellation

Description

The True Wireless OnePlus Nord Buds 4 Pro in a black finish represent a strategic product for specialized B2B telephony accessory and mobile audio resellers. Designed to meet the demands of Android and iOS ecosystem users looking for a high performance-to-price ratio, they integrate a high-efficiency Active Noise Cancellation (ANC) system capable of mitigating background noise up to 47 dB. Their short-stem in-ear design ensures stable mechanical retention and quality passive insulation, suited for business travel, office environments, or sports use.

On the electro-acoustic front, the Nord Buds 4 Pro rely on dual 12.4 mm dynamic drivers with a titanium-coated membrane, configured to deliver deep bass and a precise high-frequency spectrum. The onboard microcontroller utilizes the Bluetooth 5.4 standard with support for the LHDC 5.0 high-definition codec, guaranteeing lossless audio streaming and ultra-low latency during gaming or video viewing. Phone call pickup is handled by a 6-microphone array (3 per earbud) coupled with a wind noise reduction and artificial intelligence filtering algorithm. The assembly is powered by Lithium-ion accumulators ensuring up to 44 hours of total battery life with the charging case, which is rechargeable via a USB-C port with fast-charging protocol.

The mechanical assembly relies on a high-density ABS polymer shell certified IP55 for the earbuds, providing an airtight barrier against dust infiltration, water splashes, and sweat. For B2B fleet managers and technicians, the device supports Google Fast Pair technology, dual multipoint connection to easily switch between a computer and a smartphone, as well as full customization of the equalizer and touch controls via the HeyMelody app or directly within the native interface of OnePlus and Oppo smartphones.

Technical Specifications

• Manufacturer Reference: OnePlus Nord Buds 4 Pro (Black)
• Technology / Material: 12.4 mm titanium dynamic drivers / ABS polymer shells and medical-grade silicone tips
• Compatibility: Universal Bluetooth 5.4 (Android, iOS, Windows, macOS) and HeyMelody app / OxygenOS
• Dimensions: Ergonomic short-stem in-ear format
• Weight: 4.4 g per earbud (8.8 g the pair) / Charging case: 38 g
• Power Supply / Standards: Earbud battery: 58 mAh; Case: 440 mAh, USB-C charging (5V / 1A), IP55 certification (earbuds), CE
• Battery Life / Charging: Up to 44h (without ANC) / 28h (with ANC), fast charge 10 min = 11h overall listening time, full charge in 80 min
• Connectivity & Audio: Bluetooth 5.4 (LHDC 5.0, AAC, SBC), 6 integrated microphones, Multipoint Connection, Google Fast Pair

Workshop Tip & Usage

To prevent after-sales returns related to localized volume drops or charging failures, it is recommended to advise the customer on weekly cleaning of the gold-plated connectors located at the bottom of the stems and at the bottom of the case wells. A cotton swab dampened with 99% isopropanol alcohol effectively removes sebum or oxidation residue. Also remind the end user that only the pair of earbuds benefits from IP55 certification: the charging case must never be rinsed under water or exposed to direct moisture. In case of synchronization loss or abnormal multipoint behavior, perform a factory reset by placing both earbuds in the open case and holding down the function button for 10 seconds until the LED indicator flashes red.