SMS Audio - BioSport Black

SMS Audio SMS-EB-BIOSPORT-BLack BioSport Wired In-Ear Water Resistant Athletic Headphones w/ Biometric Monitoring Contents: Protective case and 3 sizes of ear gels (s,m,l) Wired In-Ear Earbuds • Biometric Heart Rate Monitoring • Water Resistant Design • Powered by Intel • Color: Black The BioSport earbuds combine an unobtrusive fitness tracker with studio mastered sound quality for the ultimate workout accessory. SMS Audio, in conjunction with Intel, engineered a tiny optical sensor in the right earbud of the BioSport earbuds which bounces light off of your outer ear in order to measure your pulse. The optical sensor completely eliminates the need to wear a traditional chest wrap or wrist monitor. Because the earbuds are corded, they don't require any additional batteries to power the sensor, works best with run keeper.