- Triple connectivity: Connect to deskphone Bluetooth mobile phone or computer (PC or Mac) USB-A- Long range bluetooth up to 250 ft (75 m)- Call control on the headset (answer/end volume up/down and mute)- 7 hours talk time (9 days standby)- Digital MEMS omni-directional four mic array- Design for outdoor use with windSmart technology and P2i coating for moisture protection- Six layers of WindSmart technology PC wideband and mobile wideband: up to 6 800 Hz; echo cancellation proprietary DSP A2DP- Headset weight 20 grams (0.04 lbs)- Amazon Alexa compatible- Remote answering with lifter (HL10) or electronic hook switch module (EHS) sold separately