Hand pump (Bicycle) pump or compressor can be used repeatedly to fill the air in the ritya-zi se-hutexisigunaruea-ho-n. Maritime Safety Protection, construction site, etc. in a work in the measure of safety to the left. ·ritya-zi with heavy duty aluminum container. Large, powerful 115 DB sound £ » · One Charge be used approximately 60 times. Does not use it in bad weather. Size: Width 200 x Height 190 mm Weight: 195g Package included: miniea-ponpu