Features: 1.2 Function Gears: Electronic repeller has 2 function gears, which are 1 gear red and blue lighting, and 2 gear red and blue alarm lighting. 2.Electronic Analog: Electronic repeller is made with electronic analog technology so that you can achieve better results and strong performance when using it. 3.No Radiation and Noise: Electronic repeller is noise free and radiation free to defend the health of you and your family. Safe and environmentally friendly. 4.Light Weight: Our electronic repeller is designed to be portable and lightweight, so you can carry it around with you whenever you need it. 5.Suitable Scenarios: Electronic repeller is very suitable for bedrooms, living rooms and offices, etc. You can place it when you are travelling, camping or fishing. specification:Item Type: Electronic Repeller Material: ABS Ultrasonic Frequency: 19.5 to 135KHz Product 8 band ultrasonic intelligent frequency conversion Function Gear: 2 gears (1st gear red and blue lighting, 2nd gear red and blue alarm light) Battery Type: Built in 100mAh lithium ion battery PackageList:1 x ElectronicMosquitoRepeller 1 x Data Cable 1 x Hanging Loop 1 x Instruction Manual