Similar performance to motorbike alarm,loud speaker although install at a place to frighten the thief/robber. Use triaxial accelerometer sensor and special calculation to increase accuracy of robber manner recognition and reduce false alarms caused by noise interference. High efficient with7 adjustable level of sensitivity,from to push beat and suitable for all conditions. 3 ringtones for remote bell sound;long range remote and easy to search the motorbike or bicycle. Can trigger SOS function and emit call for help automatically when an accident is occurred to provide more safeguard manner. Wireless remote operation;more simple and convenient to use. Double-sided tape installation method is convenient for all types of motorbikes and bicycles. Product Specifications: Waterproof grade:IP66 waterproof and dustproof Remote control range:100-200 ft.(30-60 meters) Storage Temperature:-40°F(-40℃) to 158°F(+70℃) Operating temperature:-40°F(-40℃) to 158°F(+70℃) Humidity:Less than 95%RH Note: Installation guide not included, we strongly recommend you professional installation. Please check as much as possible to make sure the item is what you need. Tips:The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Colour:Black Material:plastic Package Contents: 1 * Alarm host 1 * Remote control 1 * bracket Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.