Performance 4 differ Product type Headset Headset Wearing styleDiffers Head-band In-ear Recommended usageDiffers Office/Call center Calls/Music Headset typeDiffers Monaural Binaural Product colourDiffers Black White LED indicatorsKnown for one Call — Unknown — not stated by the source Virtual surroundKnown for one No — Unknown — not stated by the source Heart rate monitorKnown for one No — Unknown — not stated by the source Motion sensorKnown for one No — Unknown — not stated by the source Bone conduction sensorKnown for one No — Unknown — not stated by the source Over the Air Updates (OTA)Known for one No — Unknown — not stated by the source Auto-connectKnown for one No — Unknown — not stated by the source Daisy chainKnown for one No — Unknown — not stated by the source HD voiceKnown for one No — Unknown — not stated by the source Hearing protection technologiesKnown for one Jabra PeakStop, Jabra IntelliTone — Unknown — not stated by the source Housing materialKnown for one Polycarbonate (PC), Acrylonitrile butadiene styrene (ABS), Silicone — Unknown — not stated by the source In-ear pressure reliefKnown for one No — Unknown — not stated by the source Number of simultaneously connected devices (max)Known for one 2 — Unknown — not stated by the source On/off switchKnown for one No — Unknown — not stated by the source Optimized forKnown for one Microsoft Teams — Unknown — not stated by the source Phonebook access profile (PBAP)Known for one No — Unknown — not stated by the source Push-to-Talk (PTT)Known for one No — Unknown — not stated by the source RefurbishedKnown for one No — Unknown — not stated by the source Unified communicationsKnown for one No — Unknown — not stated by the source Works with Amazon AlexaKnown for one No — Unknown — not stated by the source Steel hingesKnown for one No — Unknown — not stated by the source CertificationKnown for one Certified for Microsoft Teams (variant dependent);Premium Microphone for Open Office;Zoom certified;Works with Google Meet;Works with all leading UC platforms;Microsoft Swift Pair;Android Fast Pair;Android Find Hub;Apple Find My;Apple MFi;AuracastTM — Unknown — not stated by the source Power bassKnown for one No — Unknown — not stated by the source Colour nameKnown for one — Unknown — not stated by the source Lunar White Volume controlKnown for one — Unknown — not stated by the source Touch Control typeKnown for one — Unknown — not stated by the source Touch FoldableKnown for one — Unknown — not stated by the source No Protection featuresKnown for one — Unknown — not stated by the source Waterproof International Protection (IP) codeKnown for one — Unknown — not stated by the source IP55 Ports & interfaces 3 differ Connectivity technologyDiffers Wireless True Wireless Stereo (TWS) USB connectivityDiffers No USB connectorKnown for one USB Type-C — Unknown — not stated by the source Bluetooth Bluetooth profilesKnown for one A2DP, AAC, LC3, SBC, AVRCP, HSP, HFP, SPP, PBP, TMAP — Unknown — not stated by the source Bluetooth versionDiffers 5.3 6.0 Frequency response (music mode)Known for one 20 - 20000 Hz — Unknown — not stated by the source Frequency response (talk mode)Known for one 100 - 14500 Hz — Unknown — not stated by the source Wireless rangeKnown for one 30 m — Unknown — not stated by the source 3.5 mm connectorKnown for one — Unknown — not stated by the source No 6.35 mm connectorKnown for one — Unknown — not stated by the source No RF connectivityKnown for one — Unknown — not stated by the source No Headphones 3 differ Maximum input powerKnown for one 40 mW — Unknown — not stated by the source Ear couplingDiffers Supraaural Intraaural Headphone frequency 20 - 20000 Hz 20 - 20000 Hz ImpedanceKnown for one 16 Ω — Unknown — not stated by the source Driver unitDiffers 2 cm 1.2 cm Noise canceling Noise reductionDiffers No HearThroughKnown for one — Unknown — not stated by the source Intraaural headphones typeKnown for one — Unknown — not stated by the source Earbuds Acoustic systemKnown for one — Unknown — not stated by the source Closed Headphone sensitivityKnown for one — Unknown — not stated by the source 122 dB Magnet typeKnown for one — Unknown — not stated by the source Titanium Driver typeKnown for one — Unknown — not stated by the source Dynamic Noise canceling typeKnown for one — Unknown — not stated by the source Active Battery 2 differ Battery operatedKnown for one — Unknown — not stated by the source Battery typeKnown for one Built-in battery — Unknown — not stated by the source Battery technologyKnown for one Lithium-Ion (Li-Ion) — Unknown — not stated by the source Battery capacityDiffers 290 mAh 40.5 mAh Continuous audio playback timeDiffers 42 h 9 h Continuous audio playback time (ANC on)Known for one 28 h — Unknown — not stated by the source Rechargeable batteryKnown for one — Unknown — not stated by the source Talk timeKnown for one 21 h — Unknown — not stated by the source Fast chargingKnown for one No — Unknown — not stated by the source Fast charging timeKnown for one 10 min — Unknown — not stated by the source Replaceable batteryKnown for one — Unknown — not stated by the source Talk time (ANC on)Known for one 16 h — Unknown — not stated by the source Wireless chargingKnown for one No — Unknown — not stated by the source Continuous audio playback time (with charging case)Known for one — Unknown — not stated by the source 48 h Battery capacity (charging case)Known for one — Unknown — not stated by the source 530 mAh Battery recharge timeKnown for one — Unknown — not stated by the source 1.5 h Battery weightKnown for one — Unknown — not stated by the source 7.93 g Other features identical Automatic volume adjustmentKnown for one No — Unknown — not stated by the source Bluetooth Low Energy (BLE)Known for one — Unknown — not stated by the source USB cable lengthKnown for one 1.2 m — Unknown — not stated by the source Voice guidanceKnown for one No — Unknown — not stated by the source Applications supportedKnown for one Jabra Plus;Jabra Direct;Jabra Xpress — Unknown — not stated by the source Auto power offKnown for one No — Unknown — not stated by the source Battery life (fast charging)Known for one 2 h — Unknown — not stated by the source Depth (imperial)Known for one 6.1 cm (2.4") — Unknown — not stated by the source Height (imperial)Known for one 17.3 cm (6.8") — Unknown — not stated by the source Near Field Communication (NFC)Known for one No — Unknown — not stated by the source Operating temperature (T-T)Known for one 14 - 113 °F — Unknown — not stated by the source SpeakerphoneKnown for one No — Unknown — not stated by the source Voice controlKnown for one No — Unknown — not stated by the source Width (imperial)Known for one 17.3 cm (6.8") — Unknown — not stated by the source Digital Signal Processing (DSP)Known for one No — Unknown — not stated by the source Packaging contentKnown for one Headset;Link 390 Bluetooth adapter;usb-c to usb-c cable;Carry pouch;Charging stand (SKU dependent);Warranty and warning leaflets — Unknown — not stated by the source Protective pouchKnown for one No — Unknown — not stated by the source Bone conductionKnown for one — Unknown — not stated by the source No 
