1. Product Information: - Color: Black - Applicable Scope: Bicycle windows - Operating Voltage: 4.5 (V) - Minimum Volume: ≥113 (dB) - Operating Current: 10 (mA) - Type: Anti - loss device 2. Packaging List: - 1 * Remote control - 1 * Anti - loss device - 1 * Screwdriver - 3 * AA batteries 3. Ideal Uses: - Suitable for bicycles, cars, motorcycles, electric bicycles, self - balancing scooters, doors and windows. 4. General Alarm: - Mainly used as an anti - theft alarm. 5. Extremely Loud: - Emits an extremely loud 113 dB alarm when activated. It has a strong deterrent effect and can effectively deter bicycle thieves. 6. Waterproof: - With a waterproof rating of up to IP55, it can be used outdoors. 7. Adjustable Sensitivity: - There are 7 sensitivity levels to choose from, corresponding to 7 tones respectively. Do is the highest and preset sensitivity level.