Mini size: 65mm * 45mm, compact with creative design. Waterproof: PC material shell, IP55 waterproof, can be used for outdoor use. Super loud alarm: 113 dB, 7-level adjustable sensitivity. Ease of use and installation: wireless remote control, easy to use. Two installation methods, stick it with a double-sided sticker or tie it with a hanger. Flexible Options: When you need additional remote controls for family members or just for spare parts. Please refer to More Remote Control in the Notes and Actions . Product information House Security Door Window Burglar Alarm bike alarm system Thanks for coming, you deserve the best This is anti-theft bike / motorcycle / door window alarm 113db super loud alarm system bike alarm system Once triggered, 113 db super loud alarm will be a great deterrent, can effectively deter bike thieves. Main functions Arming and Disarming Adjusting the touch sensitivity Select the ringtone. Find a one-key vehicle. SOS functions Show low battery Remote control - easy and convenient bike alarm system Arming button: Press once, the alarm goes into Arming mode , 5 seconds later the alarm Bi sounds. The alarm goes off and rings when a vibration or shock is detected. Disarm button: Press this button in Arming mode , the alarm will be put into Arming mode and return to Standby mode . Even if the host alarm goes off, the alarm will stop immediately when you press this button. Change button: press this button to select the ringtone, 6 voices are available. Ringtone Button: The alarm clock will ring the selected ringtone when you press this button so you can easily find your bike. Installation accessories: 2 * fastening strips, 2 * double-sided sticker There are also installation holes and interface on the back of the alarm, making it very easy to install the alarm on your bike or motorcycle. Replacement remote control 1) For additional remote control, you can search to order it, 2) The additional remote control must be paired with the host alarm before use Like a couple Long press the ringtone button on the previous remote control until you hear Bi , then press the arming or disarming button on the new remote control, the hostal alarm will ring BI ... Bi to remind you that the couple is successful can now use the new remote control. Wide application With the robust PC housing, it is waterproof and dustproof, very suitable for outdoor use. It is widely used on bicycle / e-bike / motorcycles / self-baslancing scooters, door and winodow. Power supply: Host battery: 3 * AAA alkaline batteries (not included) Remote control battery: 12V / 27A alkaline battery (included)