Feature: 1.Physical technology- It quickly relieves the itching of mosquitoes or insect bites and eliminates swelling. 2.No more itching - our electronic devices can counteract itching, burning, pain and swelling caused by daily mosquito bites, without any chemical additives, 3.Practical - Repellent is compact and can be used anytime, anywhere. Battery-powered anti-itch solution, reusable device with 2 AA batteries (not included). Also suitable for pregnant women, allergic patients and children. 4.Function - it is an externally processed electronic device,such as, for example, a mosquito, a wasp, a bee, a wasp, or a brake.for insect bites and insect bites. 5.Widely used - for itching, burning, pain and swelling. Lightweight and portable, suitable for outdoor sports, camping, fishing, running, etc. Size: 13.6*4.5*3.9cm Voltage: DV3.0V Power: 1.2W includes:1 x Itching instrument