Megaphone with MP3 playback function /USB, micro SD/, microphone and siren from TM series that delivers output power of 25 W and SPL of 110 dB, suitable for most varying applications. Megaphone is equipped with handheld microphone with helix cable, lockable talk button and volume control, operating switch for siren, speech ad whistling sound. Megaphone features traditional practical pistol grip, shoulder strap, and even connecting cable for motor vehicles. Device can be powered by eight C-size 1.5 V batteries (not included), or via jack for external 12 V operation. Dimensions: 230 x 340 mm. Weight: 1.7 kg.