It is windproof, rainproof and corrosion proof, and can easily deal with the harsh environment in the field Long service life with high-quality battery (reference time 16 hours - longer intermittent service time) The cylinder can withstand 1000 + pounds of pressure and can work normally even if it is run over by a car tire The barrel is provided with longitude anti-skid groove, and the surface adopts special electroplating process, which is more wear-resistant than ordinary paint It is easy to carry and small. It is an emergency and portable item.syi