55dB of noise cancellation and 54 hours of playback

The Nord Buds 4 Pro are built around one thing most budget earbuds get wrong: actually shutting the world out. Pro-level real-time Active Noise Cancellation blocks up to 55dB across a 5,000Hz bandwidth, the strongest in the Nord Buds line and a real step up from the 49dB on the previous generation. On a metro ride or in an open office, that is the difference between hearing your music and hearing everything around it.

Sound comes from 12mm titanium-coated dynamic drivers that OnePlus says deliver double the power output of the Nord Buds 3 Pro. Frequency response runs from 20Hz to 40kHz with 122dB driver sensitivity, so bass lands with weight and vocals stay clear rather than getting buried. 3D Spatial Audio and Game Sound Spatial Audio widen the stage for films and gaming, and LHDC 5.0 Hi-Res codec support means Android users with a compatible phone get a genuinely better stream than the usual AAC-only budget buds allow.

Battery is the other headline. With ANC off on AAC you get up to 13 hours from the buds and 54 hours in total with the case. With ANC on over LHDC, the most demanding setting, that is still 7 hours from the buds and 26 hours with the case. Flash charge tops them up quickly when you are running out the door.

Six microphones with AI Clear Call strip background noise from your voice on calls, and Bluetooth 6.0 with dual-device connection lets you stay paired to a laptop and a phone at once. Each bud weighs roughly 4.4g, carries an IP55 rating for sweat and splash, and now supports slide volume control alongside touch gestures. AI Translate adds real-time translation when paired with select OnePlus phones.

Product Specifications

• Brand: OnePlus
• Product: Nord Buds 4 Pro TWS Earbuds
• Model: E518A
• Colours: Raven Black, Radiant Grey
• Driver: 12mm titanium-coated dynamic driver
• Frequency Response: 20Hz to 40kHz
• Driver Sensitivity: 122dB
• Active Noise Cancellation: Up to 55dB, 5,000Hz noise reduction bandwidth
• Microphones: 6-mic setup with AI Clear Call
• Spatial Audio: 3D Spatial Audio and Game Sound Spatial Audio
• Connectivity: Bluetooth 6.0, up to 10m range, dual-device connection, Google Fast Pair
• Codecs: LHDC 5.0, AAC, SBC
• Battery (Buds): 62mAh | Battery (Case): 530mAh
• Playback (AAC, ANC off): Up to 13 hours on buds, up to 54 hours with case
• Playback (LHDC, ANC on): Up to 7 hours on buds, up to 26 hours with case
• Charging: Flash Charge supported
• Water and Dust Resistance: IP55 (buds only, case is not rated)
• Controls: Touch control and slide volume control
• AI Features: AI Translate, AI Assistant, AI on Standby for alarms, weather, reminders, and general knowledge
• Bud Weight: Approximately 4.4g each
• Bud Dimensions: 31 x 20 x 17.52 mm
• Case Dimensions: 60 x 49.64 x 25.04 mm
• App Support: HeyMelody with 10-band equaliser, audio presets, BassWave, ANC levels, and gesture customisation

Warranty & Support

• Warranty Period: 1 Year manufacturer warranty from date of purchase
• Coverage: Manufacturing defects in material and workmanship
• Not Covered: Physical damage, liquid damage beyond the IP55 rating, ear tips and other consumables, battery degradation from normal use, and damage from unauthorised repair
• Service: OnePlus Service Centres across India, plus pickup and drop service in select cities
• Support: OnePlus India Support at oneplus.in/support, or 1800 102 8411
• Proof of Purchase: Retain your invoice and register the product in the OnePlus Store app for faster service