This compact and portable handheld cooler fan can be used continuously for up to 7 hours on a single charge of approximately 3.5 hours. I bought it on Amazon to watch a game, but I only used it once and haven't used it since, so I'm selling it. - Cooling Mode: Equipped with a cooling mode - Temperature Reduction: Cools down to 10°C - Usage Time: Continuous use for approximately 2.5 to 7 hours - Design: Compact and easy to carry - Usage Scenarios: Can be used on the face and body Thank you for looking.