Feature:100 percent Brand new and high quality6-band ultrasonic infinite loop scan(13-25KHZ/26-35KHZ/36-45KHZ/46-55KHZ/56-65KHZ/66-75KHZ)Variable frequency band will be in return every 2 seconds and all frequency can work togetherWide Applicable scenesAn essential item for all outdoor activities, especially for camping, hunting, mountaineering, running, hiking and so onMore safe for child and petThis repellent is 100 percent safe and effective. Ultrasonic sound is inaudible to humans and household pets. Environmental friendlyAlternative to harmful and dangerous Rechargeable batteryLithium battery is rechargeable by using micro USB cable in packagePortable hook for carryingComes with a hook, you can hang it outdoorsDescriptionSound frequency: 15-75KHzEffective range: 10-60 square meterOutput frequency: 13KHz-75KHZProduct color: white / blackMaterial composition: ABSWorking current: 1.8MABattery capacity: 100mAhBattery type: polymer lithium batteryCharging method: USB charging (support fast charging)Item size: 4.45 x 1.25 x 6.2cm /1.75x0.49x2.44in Package Included: 1x Pest Repeller 1x Hook 1x USB Cable 1x User Manual Note1.Our size are Asian Size,1-2 size smaller than euro size,please choose your size according to the size chart.2.Due to the hand measurement, there have size error about 1-2 cm.Item color displayed in photos may be showing slightly different