Call answer/ignore/end/redial, mute, volume +/-, Bluetooth pairing, ANC 1/2, open mic, smartphone VPA access, power on/off.SoundGuard® DIGITAL: protects against sound levels above 118dBA Anti-startle (during calls) detects and eliminates any large sudden increase in signal level Time-Weighted Average prevents average daily noise exposure from exceeding 85dBA*.Dynamic EQ optimized for PC wideband voice telephony up to 7 kHz or for multimedia 20 Hz to 20 kHz.
Dual-paired four mic DSP noise cancelling technology, dual- mode active noise cancelling (ANC) technology, mobile wideband compatibility, A2DP, AVRCP, HFP, HSP.Up to 98 feet (30 meters) with Class 1 enabled device.Up to 24 hours listen, 20 hours talk, up to 1 month standby time.