USB Rechargeable Ultrasonic Flea Tick Lice Repeller Anti Bug Insect Repellent For Cat Dog Pets Supplies Feature: 19.5-135KHz (8-band ultrasonic intelligent frequency conversion) ultrasonic physically repels ticks, fleas, lice and mosquitoes, no chemicals, and safe repellent. The red and blue lights that light up when the product is working can increase the safety of pets at night. Specification: Material: ABS Input: 5V / 1-2A Rated power: 0.008-0.015W Working current: 2-3.5mA Acoustic frequency: 19.5-135KHz Effective range: outdoor 3-10m/9.84-32.8ft, indoor 10-80 square meters Battery type: Polymer lithium battery (100mAh) Function gear: 2 gears (1 gear red and blue breathing light, 2 gear red and blue warning light) Charging method: USB charging (red light is on during charging, green light when fully charged) Working principle: Portable electronic insect repellent - Based on physical principles, this device uses electronic simulation technology to achieve the effect of repelling ticks, fleas and lice. By emitting ultrasonic waves that can stimulate the brains and nerves of ticks, fleas and lice, it can't stand it and leave it far away. Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-3cm measuring deviation due to manual measurement. Product size: 33x14x46mm/1.3x0.55x1.81in Shipping color: black Quantity shipped: 1