1. The business mainly operates in the United States, with its core business being the sale of wearable neuromodulation devices used to relieve stress, improve sleep, and enhance performance. 2. In the health / medical sector, it belongs to the innovative technology product category, with competitors including health-tracking devices such as Fitbit and Oura Ring. 3. The brand terms used on the official website are "Apollo Neuro" and "Apollo Wearable".