Perfect for announcements in colleges , schools, drills , offices , police , including siren , Bluetooth, record music, voice and play subsequently it has 240 seconds recording capacity Also, you can playback from USB or memory card recorded voice , announcement, parking lot directions ,speech ,anthems, music and so on USB Chargeable , cable provided. Battery can be recharged -recharge unit provided , 1 battery included 30 watts sound output suitable for large audience. Handle for grip with ni sling . Continuous repeat playback available. Has been utilized by indoor & outdoor fire officers, mentors, police, firefighters, cheerleader, schools, sports activities, occasion organizers and director megaphone want to utilize this nimal bullhorn for various reasons.Perfect for announcements in colleges , schools, drills , offices , police Announce,Signal and Siren! Moisture-proof and dust-proof designed function buttons, durable to use. 240 seconds long and high definition recording with plentiful music & siren sound source. Adopts ABS material to firm the body, more comfortable to hold grab handle according to somatology. Rechargeable battery, safe, stable, durable and long operation life. USB Chargeable , cable provided. Battery can be recharged -recharge unit provided , 1 battery included suitable for large audience. Handle for grip with ni sling . Continuos repeat playback available.Has been utilized by indoor & outdoor fire officers, mentors, police, firefighters, cheerleader, schools, sports activities, occasion organizers and director megaphone want to utilize this nimal bullhorn for various reasons. This item comes with 1 Year Replacement Warranty All Over India. Successful Warranty Claims under the policy will be covered with a replacement of a new product unit.