[High Power & More Efficient]- With 5W to 8W continuous alternating ultrasonic and electromagnetic waves, our repeller can effectively drive mice and insects away from your home. Our combines advanced technology and humanitarianism. It's cheaper and more than expensive control companies and more effective than other control methods. [Newest Frequency Conversion Technology]- repeller can effectively drive away by newest frequency conversion dual wave technology, the intelligent chips inside of repeller can make continuous alternating frequency of ultrasonic and electromagnetic waves automatically, they are converted and coexisted, can effectively repel rats, mice, rodents, cockroaches, mosquitoes, spiders by disturbing their auditory systems. [ Coverage]- With Three Speakers which adopt membrane technology, the strength of sound wave enhances dramatically. So our repeller can release more ultrasonic and electromagnetic waves in full coverage in range of 200 which can 360 degree all-around drive away. [Safe & Environmentally Friendly]- No chemicals, no traps, no killings, our repellers are safe and harmless to humans, children and pets. It's a physical to dislodge which non- and environmentally friendly. [Easy to Use & Silent]- Just plug and play. Simply plug our electronic controller into a wall outlet, press button, then it works! Our repellents are mute, only can be , and humans couldn't hear so it's perfect for pregnant women and infants. ultrasonic repeller can give you a comprehensive and ongoing protection from . With intelligent frequency conversion dual-wave technology, Repellers emit ultrasonic and electromagnetic waves continuously, dual-w are converted and coexisted, so cannot produce immunity. By stimulating 'nervous systems and auditory systems, they will feel uncomfortable and uneasy then run away. 1-2 Week: Latency Period Produce continual influence and interfere to . 3 Weeks: Effective Period Damage 'immune and nervous systems. 4 Weeks: Stable Period Greatly affect reproductive function of , repel them way thoroughly. damage: repellents can reduce number of from by breaching their living environment. ultrasonic repellers can effectively drive rats, mice, cockroaches, spiders, ants, bugs, flies, mosquitoes and other far away. Specification: Imperceptible Ultrasonic Frequency: 22-85 KHz Plug Type:UK plug,it applies to Malaysia, the United Kingdom and so on. colour: black Material: ABS Size: 94x90x36mm Package Contents: 1 x Ultrasonic Repeller Only above package content, other products are not included. Note: Light and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.