This product is widely used in outdoor activities. The pest control ultrasonic repeller uses newest ultrasonic and electromagnetic waves to drive away mice, rats, spiders, ants, bugs, cockroaches, mosquitoes, fruit flies, flea, crickets, gnats, insects and rodents. Features: 7-band ultrasonic infinite loop scan (13-25KHz/26-35KHz/36-45KHz/46-55KHz/56-65KHz/66-75KHz/76-95KHz) Variable frequency band will be in every 2 seconds and all frequency can work together. Wide applicable scenes An essential item for all outdoor activities, especially for camping, hunting, mountaineering, running, hiking and so on. More safe for child and pet This repellent is 100% safe and effective. Ultrasonic sound is inaudible to humans and household pets. Environmental friendly alternative to harmful and dangerous Rechargeable battery Lithium battery is rechargeable by using micro USB cable in package. Portable hook for carrying Comes with a hook, you can hang it outdoors. Specifications: Sound frequency: 15 ~ 95KHz Effective range: 10-70 square meter Output frequency: 13KHz ~ 95KHz Product color: white / black Material composition: ABS Working current: 1.8MA Battery capacity: 100mAh Battery type: polymer lithium battery Charging method: USB charging (support fast charging) Item size: 4.45 * 1.25 * 6.2cm /1.75*0.49*2.44in Item weight: 30g /1.05oz Package size: 2*6*7cm /0.78*2.36*2.75in Package weight: 33.6g /1.18oz Package Included: 1X Pest Repeller 1X Hook 1X USB Cable