Ear-wearable oxygen monitoring system

A kit, comprising:

• a wearable device configured to be positioned on an ear of a wearer, the wearable device including a first body portion, a second body portion, and a connection member mechanically coupled to each of the first body portion and the second body portion, the first body portion having a processor, a memory operably coupled to the processor, at least one light-emitting diode, and at least one optical sensor configured to detect, during operation, a reflected portion of light emitted from the at least one light-emitting diode, the reflected portion of light being reflected from a surface of the ear of the wearer, the memory storing instructions to cause the processor to calculate a blood oxygen saturation level of the wearer based on the reflected portion of light;
• a charger case configured to contain and supply power to the wearable device;
• and
• a plurality of flexible earpads, each flexible earpad from the plurality of flexible earpads configured to be mechanically coupled to the second body portion.