Model: OTE100 Engineered for the best wireless calls and music. Experience with SmartSound (Verified by Force Technology, 21-12-2018. See facts on Jabra.com/commerical-claims). SmartSound: Audio that automatically adapts to your surroundings. Smart Active Noise Cancellation (ANC). Purpose-built speakers for superior music. Up to 36 hours battery (ANC on). Custom music settings that auto adjust. Up to 36 hours battery (ANC on). 8 microphones for enhanced call quality. Voice assistant enabled (Operating system dependent). Rain-resistant durability with a 2-year warranty (Registration required with Jabra Sound+ app). GN making life sound better. Exceptional engineering & superior sound for 150 years. 1 year warranty. Verified Energy Performance. To enjoy SmartSound download the Jabra Sound+ app. Get it on Google Play. Download on the App Store. Designed & engineered in Copenhagen. Made in China.