Small and light-weight model with built-in amplifier and generator : SL103AC Omnidirectional sound source: Compliant with: ISO16283; ISO140/3; ISO10140; ISO 3382 ; DIN 52210 LW: 119 dB ref 1pW (Switch in Maxi output level) Diameter: 26 cm / 10,2 inch Total Weight: (amplifier + source) 4,9 kg /10,7Lb Frequency Response: 50- 20.000Hz Power amplifier: 150 W Rms Remote Control: 16 key for total control Noise generator: White Noise; Fast white Noise; Pink Noise; Fast pink Noise; Sine sweep; Impulsive Noise