Camera Wireless Detector Monitor Positioning Tracking Infrared $ 11.71 Product information: Alarm mode: Sound Detection frequency range: 1-65000(MHz) Model: AK400 Working range: 0.01-10 (meters) Operating voltage: 3.7(V) Dimension: 913713(mm) Weight: 36(g) Scope of Application: Various Places Type: wireless detector Packing list: 1* Camera wireless detector Product Image: