We have made the old megaphone Hands Free and Wearable. This megaphone is there when you need it. The Voice Blaster features a 2.5" speaker and fits up to a 50" waist. Can be heard up to 325' and includes a rechargeable battery adapter (for use with rechargeable batteries only). Made from heavy-duty plastic and weighs less than 2 lbs. Provides a full 5 watts of power and operates on 6 AA batteries (not included) that can last up to 8 continuous hours. Teachers will love to use the Voice Blaster in the gym, on the playground, in the lunchroom or on field trips. Coaches can use it on the practice field and to make announcements at their games. It's also perfect for band and cheerleader practice.