Dry Cell & 12V Car Battery operation.
Power Output: 16W Rated/20W Max;Voice Range: 0.4km (1km in Quiet Area)
Power Source: 12V DC, 8×UM-2 Cells/Car Battery
Dimensions: Horn Dia. 220mm, Length 370mm;Weight: 2.20kg
All ABS body, sturdy yet lightweight with Built-in Siren. Clear sound, long range & efficient design. Microphone with Volume Control & Press-to-Talk Switch.