Power: a 9v battery Frequency: 20khz Net weight: 272g Size: 420(l)*138(w)*110(h)mm Hand : 30*30mm Alarm indicator: bz, vibration Detecting distance: Dip14 ic(integrate circuit) 5mm Model 64 pistol 150mm Carton size: 46cm * 31cm * 59cm (14kg on volume) Gross weight: 11kg 20pcs/ctn