DescriptionAre you looking for a professional, yet affordable bike alarm? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further! Our professional bike alarm must meet you needs. It is one of the best choices for you.Features- Color: Black. - Material: Plastic. - Size: 10 x 8 x 2 cm. - Alarm volume: 113dB. - Host battery: 3xAAA battery. - Waterproof: IP55. - Working current: 150mA. - Working voltage: 4.5V. - More efficient 7-level touch sensitivity adjustment. - Tie your bike by the strap through the holes or paste the back of the alarm with double-sided sticker to your bike. - If the tilt is greater than 45 degrees, it will automatically call for help, and the right will automatically turn off the call for help. - Using 3D displacement sensors and special algorithms. More accurate identification of theft, reduce noise and other false positives. - Adopted from material, it is durable and long lasting use.