[【CONVENIENT&DURABLE】- Stainless steel wire closure for secure storage and a water-resistant O-ring seal to keep rain snow and moisture out when the cap is closed. Includes a wrist lanyard for easy carry. Note: DO NOT touch the arc with hands. 【MULTIPURPOSE USE】-Windproof and flamelessusb rechargeable arc lighter. It is a perfect outdoor lightercamping fire starter toolan emergency fire starter tooledc camping survival tactical gear and more. 【BUTANE FREE】- No more harmful butane. SUPRUS uses plasma tech to eliminate the need for this harmful chemical. Simply plug in to any USB port(like computer or car or mobile phone portable charger）with the included USB cable. It can be quickly fully charged in 1.5 hours. During the ignition there will be noise of “ zeezee” which is high-voltage power generation please use with relax.]