Efficient and worry-free: the portable insect repellent is invisible to the human ear and the hearing of our pets. It uses advanced ultrasonic technology, it uses no chemicals, is odourless and non-toxic. It repels insects and rodents and creates an unfavourable environment for them to achieve the effect of the drive of mosquitoes and insects. Outdoor long-term protection: mosquito repellent ultrasonic insect repellent has a wide coverage, which can effectively deter mosquitoes whether you are at home or travelling. The insect repellent can be used for up to 7 days. It can be used for camping, hunting, climbing, running, hiking, fishing, barbecue, picnic and even simple barbecuing. Easy to use: mosquito repellent ultrasonic insect repellent is very easy to use, small and cute, with key chain, can be hung anywhere and can also be used for pets with lanyards. Take it anywhere you go to protect yourself from mosquitoes or other insect bites. The portable insect repellent is the best companion for camping or travel companion. SAFE FOR KIDS AND PETS - The professional insect repellent made of ABS material is safe for adults, children and pets. The repellent can be carried around and can also repel insects while repelling mosquitoes, so pets can avoid the impairment of skin diseases. For infants, pregnant women and pets, the pest repellent is safe and safer than chemical sprays. Quiet and no noise: working frequency of the ultrasonic insect repellent is 25-65 kHz, the ultrasonic frequency is not audible to people and pets, so that the repellent works very quietly and silently. Simply turn on the mosquito repellent switch to start working and repel mosquitoes without killing them. Keep away from mosquitoes and enjoy nature.