Cmf Headphone 1 by NothingCategorySpecificationDetailsHeadphones DesignDimensions173.85 mm (H) x 78.0 mm (W) x 189.25 mm (D)Weight329 gCase DesignDimensions52 mm (H) x 220 mm (W) x 220 mm (D)Weight264 gSoundDrivers40 mm dynamic, 16 ΩFrequency Response20 Hz – 40 kHzDiaphragmPU (Polyurethane)TuningSound by KEFBatteryTypeRechargeable Lithium-ionCapacity1040 mAhCharging (Wired)Type-C, 120 mins to fullFast Charging (ANC Off)5 mins for 5 hours playbackFast Charging (ANC On)5 mins for 2.4 hours playbackPlayback (AAC, ANC Off)Up to 80 hoursPlayback (AAC, ANC On)Up to 35 hoursPlayback (LDAC, ANC Off)Up to 54 hoursPlayback (LDAC, ANC On)Up to 30 hoursTalk Time (ANC Off)53 hoursTalk Time (ANC On)37 hoursNoise CancellationTypeReal-time Adaptive ANCDepthUp to 42 dBFrequency Range2000 HzMicrophone Quantity6 total (3 mics each side)FeaturesAdaptive ANC algorithm, Transparency Mode, 4-mic ENC for callsConnectivityRange10 mBluetooth Version5.3Dual ConnectionYesAndroid Support5.1 and aboveiOS Support13 and aboveCodecsAAC, SBC, LDACOther FeaturesTech IntegrationsGoogle Fast Pair, Microsoft Swift Pair, Media Browser Service API, Low Latency Mode, LDAC & Hi-Res Certified, On-Head Detection, IP52 rating (Dust & Water Resistant)ControlsOn/Off SwitchUp: Off, Down: OnPairingHold Bluetooth button for 2s until white LED blinksRollerRoll L/R: Volume, Press: Play/Pause, Press & Hold: Cycle ANC/TransparencyPaddlePush R: Next Track/Answer, Push L: Previous Track/Reject, Hold R: Fast Forward, Hold L: RewindButton (Nothing OS)Press: Channel Hop, Hold: Smart AssistantButton (Android/iOS)Press: Smart AssistantLED StatusLow Battery (<30%)RedBattery (≥30%)WhiteChargingWhite LED flashingFully ChargedWhite (solid)PairingWhite LED flashingFactory ResetRed LED flashes 3x, then White LED flashesSustainabilityCarbon Footprint14.84 kg CO2eCommitments100% renewable energy in final assembly, Amazon Climate Pledge-Friendly, Plastic-free packagingIn the BoxContentsNothing Headphone (1), Softshell Case, USB-C Cable, User Guide, Safety & Warranty Info, 3.5mm to 3.5mm Audio Cable
