Feature: 1. Sturdy Structure: This solar alarm can be installed outdoors, which has strong construction and do not afraid of rain and sun, which is waterproof and dustproof. 2. 3 Working Modes: There are three operating modes, which are the first 24 hour induction sound and light alarm mode, the second night induction sound and light alarm mode, and the third night cycle sound and light alarm for 5 minutes. 3. Solar Powered: This alarm is powered by solar energy, it can be charged quickly and can be installed and used immediately to ensure no power cut and no electricity consumption. 4. Effective Deterrent: The alarm, which mimics the sound of a gun or a dog barking, is effective in deterring trespassers without actually causing harm. 5. Convenient to Use: Support USB interface charging, with over charge over release protection. Equipped with screws, easy to install and use. Specification: Item Type: Solar AlarmSize: Approx. 9.5 x 8cm / 3.7 x 3.1inMounting Hole Distance: 5.3cm / 2.08in Material : ABS Charging Method: Solar Charging, DC Charging Charging Time: 8 hours (different seasons light intensity will affect charging efficiency.) DC charging <1 hour (DC5V x 1A) Solar Panel: 5V x 80mA monocrystalline solar panel LED: 6 burst flashing red LED Alarm Sound: 129 decibels Battery (shipped with built in battery): Polymer lithium 3.7V/400mAH with overcharge and overdischarge protection Sensing Distance / Angle: 5-8 meters (affected by the ambient temperature) Type: induction models Function: 1mode 24 hour induction sound and light alarm mode, 2mod night induction sound and light alarm mode, 3mode night cycle 5 minutes sound and light alarm. Working Hours: Induction around 30 seconds sound and light alarm greater than 200 times, shutdown standby > 1 year, power on standby > 3 months Suitable for: Home, orchard, construction site, farm, warehouse and other places that need security alarm needs. Package List: 1 x Solar Alarm 2 x Screw 2 x Plastic Expansion Pipe 1 x USB Cable1 x Instruction Manual