TechRabbit offers the SMS Audio BioSport Biometric Earbuds in Blue, Gray, or Yellow, model no. SMSEBBIOSPORT, for $9.99 with free shipping. That's $10 under our July mention and the lowest total price we've seen. (It's the best deal now by $15.) They measure your heart rate and are compatible with a range of iPhones, Samsungs, and other mobile devices. Deal ends November 27.