Description: The Apollo wearable delivers soothing frequencies of vibration that activate your parasympathetic nervous system to help calm your body and clear your mind- morning, afternoon and night. Apollo vibes help improve energy and focus, reduce stress, promote relaxation and give you more restorative sleep. Apollo comes with both a Band and a clip, making it easy to switch where you wear it throughout the day. Measurements: One size. Condition: Gently worn, in excellent condition. Comes in a set of two with all original accessories, includes two larger bands (purchased separately) for ankle wearing.