- TALK/STANDBY TIME: Up to 4.5 hours talk time and 7 days standby time on a single battery. Easily swap included battery while a call is in progress for unlimited talk time.- BLUETOOTH: Bluetooth 5.0 with BLE- AUDIO PROFILES: A2DP AVRCP HFP HSP- APTX CODECS: SBS CVSD mSBC- RANGE: 100 m (328 ft)- VOICE ALERTS: Enhanced voice alerts announce remaining talk time mute and connection status - LANGUAGES: US/UK English Spanish (LATAM) French Italian German Russian (Cyrillic) Mandarin Korean- MICROPHONE: Dual mic array with noise-canceling front mic- FREQUENCY RESPONSE: Wideband: 50 Hz�7 kHz; Multimedia 20 Hz�20 kHz- BATTERY CAPACITY:140 mAh- BATTERY TYPE: Rechargeable replaceable lithium-ion polymer- CHARGE TIME: Three hours- MULTIPOINT TECHNOLOGY: Yes- WEIGHT: 21 gms - APPLICATIONS: Plantronics hub desktop version is available for Windows/Mac mobile version offered on Android and iOS Plantronics Manager Pro suites: Asset Management & Adoption Call - Quality & Analytics Health & Safety Amazon Alexa (easy access) TILE (lost headset location)