The next generation of bone conduction technology is what’s inside the lightest and most organically designed open ear headphones to date. Aftershokz cut the bulk and used titanium everywhere possible to ensure they not only fit more securely, but sound better too. Air are inspired by the demands of elite and aspiring athletes motivated by their music and their world. Bone conduction technology delivers music through your cheekbones, ensuring ears remain completely open to hear ambient sounds A new organic design delivers increased comfort Complete wraparound titanium design provides a flexible fit for unnoticeable all-day comfort and stability OpenFit™ design ensures maximum situational awareness and comfort during long-term wear PremiumPitch+™ guarantees a premium audio experience, including wide dynamic range and rich bass Bluetooth® v4.2 connectivity and convenient multipoint pairing LeakSlayer™ technology significantly reduces natural sound leakage IP55 certified to repel sweat, dust and moisture, from workouts to wicked weather Enjoy six hours of continuous music + calls on a single charge EQ presets boost bass and reduce vibration on the go Dual noise canceling microphones exclude surrounding noise, effectively enhancing speech Audrey Says™ voice prompts guide users through power, pair, play and talk Speaker type: bone conduction transducers Frequency response: 20Hz~20KHz Sensitivity: 100 ± 3dB Microphone: -40dB ± 3dB Bluetooth version: v4.2 Compatible profiles: A2DP, AVRCP, HSP, HFP Wireless range: 33 ft (10m) Battery: rechargeable lithium ion Continuous play: 6 hours Standby time: 20 days Charge in: 2 hours Weight: 1.06 oz (30g)