Part of the COOLiFY Air collection 5,000mAh wearable neck fan features three modes namely cooling, fan, and heating, for customized comfort Provides 4–5 hours of cooling, 7–24 hours of fan use, and 4–6 hours of soothing warmth Gentle heat wraps your loved ones in warmth, easing neck tension and melting stiffness making it a comforting gift Gentle warmth boosts circulation and relaxes tight muscles–ideal for long workdays or extended phone use