PULSE MP20 - 10W Megaphone - 
The MP20 from Pulse is a 10W handheld megaphone with wrist strap and folding handle for easy storage.
Power rating (RMS): 10W
Projection range: Up to 100m depending on conditions
Power on/off switch
Alarm on/off switch
Volume slider control
Microphone/music switch
Power supply: 4x1.5V D size batteries (not included)
Dimensions (ØxL): 155x245mm
Weight: 490g (excl.batteries)