Driver:Custom 11mm dynamic Diaphragm:PMI + Custom TPU Audio codec:LDAC, AAC, SBC Technology:Dynamic Bass Boost (Bass Boost in Nothing X) Tuning:Nothing Audio Certification:Hi-Res Active noise cancellation type:Hybrid ANC Depth:Up to 45dB Frequancy range:5000Hz Transparency Mode:Supported Microphone quantity:Each bud*3 mics, dual buds*6 mics Active noise cancellation technology "- Smart ANC Algorithm - Adaptive ANC" Environmental noice cancellation algorithm for calls:Clear Voice Technology Battery capacity Buds: 46mAh Case: 500mAh Battery Life:Playback with ANC off: Up to 42.5 hours with case and 9.5 hours with buds only Playback with ANC on: Up to 24.5 hours with case and 5.5 hours with buds only Talk time with ANC off: Up to 23 hours with case and 5.2 hours with buds only Talk time with ANC on: Up to 18 hours with case and 4 hours with buds only" Fast Charge (Music) "ANC OFF - 10 min charge for 3.2H (buds only), 10H (with case) ANC ON - 10 min charge for 2H (buds only), 6H (with case)" Wired charging:USB Type-C Wireless charging:Not support Bluetooth version Bluetooth 5.3 Dual connection:Yes Compatibility "Android 5.1 and above iOS 13 and above" Water resistance & dust resistance rating Water and dust resistance IP54 buds / IPX2 case Google Fast Pair Supported Microsoft Swift Pair Supported Other features In-ear detection Supported LED charging status Supported Packing list:Pair of earbuds Ear tips in size S, M, L Charging case Type-C cable Safety information and warranty information & User guide