Features:·      Compact size, light weight, big sound loudspeaker;·      Li-polymer battery embedded, USB charge, long time standby;·      With separate button for mode selection and switch, easy to operate;·      Installed down forward, less occupation on handlebar;·      Comes with different colors for option to match needs;·      Quick mount and release, tools free. Specifications:·      Item: Electronic Horn, TWOOC T-002;·      Noise: 110-120db;·      Sound mode: 3 modes (Whistle, Siren, Trumpet);·      Control: Wired Switch, 2 buttons, 1 for mode choice, 1 for switch;·      Switch wire: spiral shaped, range: 15-30CM;·      Battery: Li-polymer 280mAH;·      Charging: 5V 250mAH, about 1.5 hours to full charge, supports 2000 times horn ring;·      Ingress protection: Water Splash Proof; Do not submerge in water;·      Mount: by rubber strap, horn fits tube dia. 22-31.8mm ; Switch fits tube dia: 18-24mm·      Net Weight: Approx 40grams. Package Includes:1 * Horn with wired switch;1 * Rubber Strap;1 * USB Cable;1 * Users Manual (English/Chinese Language).