OnePlus Nord Buds 2R TWS In-Ear Earbuds SpecificationsMain Features: Frequency Range: 20 Hz - 20,000 HzMicrophones: 4 (2 per earbud)Sound Level/Sensitivity: 111 dB ± 3 dB @ 1 kHz 179mVSignal/Noise: Dual mic AI noise cancellation for callsConnectivity:Bluetooth Version: BT 5.3Supported Audio Formats: AAC, SBCWireless Range: 10 metersBattery:Earbud Capacity: 36 mAh per earbudCharging Case Capacity: 480 mAhPlayback Time:8 hours on one charge38 hours with charging caseCall Duration:4 hours on one charge20 hours with charging casePhysical Specifications:Drivers: 1.24cm dynamic drivers with Titanized vibrating diaphragmDimensions:Earbuds: 28.5 x 20.2 x 23mmCharging Case: 68.9 x 36.6 x 28.2mmWeight:Earbuds: 4.3 g (±0.2 g)Charging Case: 38.1 g (±1 g)Other Features:Water and Sweat Resistance: IP55Colors: Deep Grey, Triple BlueWarranty:6-months WarrantyThese earbuds provide a strong mix of high-quality sound, long battery life, and effective noise cancellation, making them ideal for both listening and calls.