Connect quickly and easily The Blackwire 3300 Series is completely plug-n-play with USB devices, so users can take calls in the office or on the go. Its robust design delivers reliability you can count on. This is the hassle-free headset you've been looking for. Look good, feel good, sound amazing Boost your on-the-call confidence with professional-quality audio and a customized fit with a headset that can connect to your devices quickly and easily and is ready to go with you wherever you go. High-quality audio Makes collaboration easy with Poly signature audio quality and reliability. Wearing style Hi-fi stereo wearing style for those who want a richer, more immersive experience. Flexible microphone boom With professional voice quality and a customized fit, this fully adjustable headset has 180-degree pivoting speakers and a flexible microphone boom. Long-lasting comfort Supports long-wearing comfort with a plush, padded headband and pillow soft ear cushions. Connectivity options Enhanced connectivity for your devices with a USB Type-C® cord and tethered USB-A adapter. Optimized for communications platforms An IT manager's dream, this headset was created for communication and is optimized and certified to work with top virtual meeting providers. Compatibility Compatible with PCs via USB/USB Type-C®, connects to mobile devices and tablets via 3.5 mm (BW3315/BW3325) and devices that support USB Type-C® Color Black Boom mic length (mm) 135 mm Sensitivity (microphone) 11 dB SLR Signal-to-noise ratio >24 dB Impedance 32 ohm Cable length 66.5 cm (inline module to headset); 90 cm (USB to inline module); 215 cm (total USB to headset) Nominal sound pressure level 94 dB SPL Button user controls Call answer/end; Mute; Volume +/- Headphone type On-ear (stereo) Sensitivity (speaker) 3 dB RLR Microphone type Omnidirectional Speaker bandwidth 20 Hz to 20 kHz Microphone bandwidth 100 Hz to 10 kHz Boom mic rotation 280° Ear cushions Artificial leather (surface material) Compatible Operating Systems Windows 11; Windows 10; macOS; Android™; iOS Acoustic protection technology SoundGuard 1 Speaker size 32 mm Weight 131 g Package weight 300 g Minimum System Requirements USB Type-A port; 3.5 mm audio; USB Type-C® port What's in the box User guide; Headset; USB Type-C® to USB Type-A adapter; Travel case Manufacturer Warranty Poly standard two-year limited warranty