1. This bicycle alarm is equipped with a mounting bracket, adjustable ring size, more stable installation on the bicycle, no possibility of falling, and easy to change the installation position2. Effectively deter thieves. The loud alarm can reach 113 decibels. The volume is adjustable in 3 levels. You dont have to worry about the alarm sound being too loud or not sounding.3. 7 levels of adjustable sensitivity from light touch to pushing or tapping. IP55 waterproof, suitable for outdoor use4. Vehicle search function, easily find your vehicle in the parking lot, 3 ringtones for you to choose, remote wireless control, powerful wireless range up to 168 cm / 66 feet5. Vibration trigger alarm is suitable for bicycles, electric bicycles, motorcycles, scooters, cars, trailers, luggage, doors and windows. You can also remotely control the noise generator to scare away animals...Specification:Size: 95x42x23mmWaterproof grade: IP653 levels of volume: small level 96dB, medium level 105dB, maximum level 113dBBattery type: 3 cells AABattery Battery life: 1~3 months of daily use (about 6 months of continuous standby)Operating frequency: 433.932+/-75KHz MHzWireless range: about 50M in open spaceWorking temperature: -40~+60Storage temperature: -30~+70Working humidity: 0~80%Package includes:1 x host1 x remote control