Clear, distraction-free calling From bustling city streets to the corner café, some of life’s most important calls happen in the most unexpected places. Our cutting-edge noise-cancelling and six layers of WindSmart technology eliminate disruptive background noise like wind and chatter so your voice sounds clear, indoors and out. Raise the power of your voice Take hands free to a whole new level. A dedicated voice control button easily activates your favorite voice assistant. Whispered alerts update you on talk time, and even announce the names of incoming callers so you can simply say "Answer" or "Ignore" to calls without lifting a finger. Wear it comfortably all day The rigorously tested ergonomic design ensures all-day comfort on a wide range of ear shapes, so it feels as comfortable on your last call of the day as it did on the first. This comfort-tested design comes with three ear tip sizes to ensure a secure-fit so you’ll forget you’re even wearing it. Four-mic noise cancelling Cutting edge noise cancelling technology eliminates background noise, so your voice always sounds clear. Four-mic array and our adaptive Digital Signal Processors (DSP) work together to cancel disruptive background noise like traffic or crowds. Take the call anywhere Six layers of our unique WindSmart technology detect wind direction and respond accordingly so your voice comes through clearly – especially outdoors. High-quality audio Supports HD Voice over wideband networks and devices to enhance speech quality, so your caller clearly hears and understands you. Smart sensor technology Smart sensors know when the headset is on or off; calls can be easily answered by simply putting on the headset; pause music for incoming calls, or mute a call by taking the headset off. Manage your calls using voice commands Announces the names of incoming callers and waits for you to say "Answer" or "Ignore", allowing you to manage your calls using voice commands. Compatibility Compatible with PCs with available Bluetooth® technology Color Black Boom mic length (mm) 122.5 mm Sensitivity (microphone) -38 dBV/Pa Charge time <1.6 hours Charging plug Micro USB to USB Type-A Battery life Up to 7 hours (talk time); Up to 9 days (standby time) Battery type Rechargeable Li-ion polymer Impedance 32 ohms Bluetooth version 5.0 Supported bluetooth profiles A2DP; HFP; HSP; PBAP; SSP2 Paired devices Up to 8 Voice alerts Volume maximum; Volume minimum; Mute on; Mute off; Muted; Connection status; Talk time; Battery low Voice assistant Siri; Google Button user controls Redial; Mute; Volume +/-; Call answer/ignore/end; Play/pause/track forward/back Headphone type In-ear (monoaural) Sensitivity (speaker) 90 dB Number of microphones 4 Microphone type Omnidirectional; Digital MEMS Speaker bandwidth 100 Hz to 20 kHz Microphone bandwidth 100 Hz to 6.8 kHz Boom mic rotation 280° Compatible Operating Systems Windows 11; Windows 10; macOS; Android™; iOS Acoustic protection technology SoundGuard 1 Dimensions (W x D x H) 91 x 53 x 15 mm Speaker size 13.6 mm Weight 20 g Minimum System Requirements Bluetooth®; USB Type-A port What's in the box Micro USB charging cable; Quick start guide; Warranty card; Wireless headset; S/M/L eartips; Charging case; BT700 Bluetooth® USB adapter Manufacturer Warranty Poly standard two-year limited warranty