how much does quell cost
LAS VEGASâ More than 100 million Americans suffer from chronic pain, and now thereâs finally a consumer-grade wearable thatâs designed to provide some relief. Announced at CES 2015, and available this spring for about $250, Quell is a wearable that takes time-tested TENS technology to the consumer market.ain relief usually kicks in within 15 minutes (assuming it comes at all). The Quell sensor promises 40 hours of pain relief on a single charge, and is designed to be worn 24-7.