Features1Green and environmental protection to make sure the safety of use. 2Adopt high sensitivity protective probe, high sensitivity. 3Microcomputer control, high reliability, sensitivity has high, medium and low, three grades adjustable. 4Using remote control for defense, only the host can remove the defense state. 5Low standby power to microampere level, long battery life, simple and reliable structure, easy to install.Specification Item Type: Cycling Alarm LockMaterial: PlasticColor: As Pictures Shown Lock Product Size: Approx. 10x6x3.5cm/3.9x2.4x1.4inchWeight: Approx. 103g/3.6ozPower supply: 6F22 9V Battery (Self-provided Lock)The Controller is Shipped with Button BatteriesModel: LR1130Capacity: 95mAhSound: >105dbWorking Current: