Shokz OpenRun

OpenRun are our lightest headphones to date and are engineered with outstanding sound, a long-lasting battery, and Quick Charge to keep you aware and motivated while you power through any workout. Key Features Earbud-Free Bone-Conducting Audio Remain Aware of Your Surroundings Up to 8 Hours of Playback IP67-Rated Water/Sweat Resistance Product Specifications Wearing Style: Dual Ear with Neckband Earpiece Design: Open-Ear Active Noise Cancellation: No Frequency Response: 20 Hz to 20 kHz (Wireless) Built-In Controls: Yes (on Earpiece) Noise Cancelling Microphone: Yes Number of Voice Mics: 2 Runtime: 8 Hours (BT) / 10 Days (Standby) Sensitivity: -38 dB Technology: 8th Generation Bone Conduction Technology Sweat & Water Resistant: *IP67 Waterproof (Not for swimming)