The MPH40 is a powerful, pistol-grip megaphone great for outdoor announcements. It comes fitted out with a switchable siren, collapsible handle, and a trigger control. For convenience, the microphone detaches from the back of the megaphone to give you even more freedom. To allow you to connect smartphones and other storage devices, the MPH40 also comes with a standard 1/8 AUX input. For extended battery life, the MPH40 can run off the rechargeable MPHBATTERY (sold separately) or 8 C batteries (not included). From full charge, the MPH40 gives you approximately 5 hours of use so you can keep the party going even longer. The MPH40 also sports an impressive range with a peak power output of 75 watts. Features: Great for making announcements at parties and medium-size venues Higher powered model so you can reach more people with your announcements Detachable, handheld mic gives you additional freedom Extended battery capabilities give you more playtime Peak Power: 75 Watts Input: Aux 3.5mm Up to 5 Hours of continuous use Battery: 8C batteries (not included) or rechargeable battery Antifeedback Microphone ABS construction and ergonomic pistol grip Handheld or shoulder strap (included) Police Siren 800M-1000M Range Volume Control Microphone can be used with trigger button or set continuously on with Microphone switch Speaker Sensitivity SPL(F0):903dB 0.1W at0.9k/1.0k/1.2k/1.5k average Dimensions (L x W x H):14"x9.2"x5.5"