Description:BackBeat PRO 2 wireless headphones shape the sounds of your day with on-demand active noise canceling wireless freedom and immersive audio. Music makes any moment more personal. Get lost in rich lifelike audio and make every moment your own. With up to 24 hours of continuous wireless use you're going to need a longer playlist. Immerse in your music. With 50+ years of industry-leading expertise in audio and communication technologies and design Plantronics understands how to deliver all the rich bass crisp highs and natural midtones of your music through headphones so comfortable you won't want to take them off.|Features:From sound to silence and back: Need calm and focus? On-demand active noise cancelling creates an oasis of personal space in a public place with one touch. To hear announcements and conversations around you simply activate open-listening mode. When you remove your headphones smart sensors pause your music automatically then resume when you put them back on. Immerse in exceptional audio: From music to movies BackBeat PRO 2 pulls you in with the richness and definition of Plantronics signature audio quality. High notes sound crisp mid-tones sound natural and deep powerful bass delivers low notes with minimum distortion.|Specifications:Talk/standby time: Up to 24 hours talk and listen time; 6 months standby Bluetooth: v4.0 Headset/Hands-Free Profile HSP 1.2 and HFP 1.6 (Wideband HD Voice); Class 1 BT Radio Audio profiles: Advanced Audio Distribution Profile (A2DP) AVRCP AAC aptX Codecs: Classic; Low latency Range: Up to 100 m/330 ft with Class 1 BT Transmitter Voice alerts: Enhanced voice alerts announce talk-time mute and connection status and more Languages: Spanish French Italian German Swedish Norwegian Danish Russian Mandarin Cantonese Korean Japanese Driver diameter: 40 mm Microphone: Boomless dual microphone with DSP Frequency response: 20 20 000 Hz Sensitivity (dB SPL/1mW): 93 Impedance (Ohm): 32|:Battery capacity: 680 mAh Battery type: Rechargeable non-replaceable lithium ion polymer Charge time: 3 hours for full charge Multipoint technology: Stay connected to two phones and answer from either one (2H2S) Weight: 89 g NFC pairing: Touch headset to NFC-enabled phones to complete pairing process Applications: Plantronics Hub application on desktop iOS and Android Operating and storage temperature: 32°F 104°F (0°C 40°C)|