Description: Portable Ultrasonic Pest Repeller is a effective and safe way to protect you from all kinds pests, like Fleas, Mosquitos, Bed Bugs, Cockroach, Rats, Rodents, Roaches, Mice, Insect, Ants, Spiders, it can widely used in house tent or outdoor activities. The range of 24-74 KHz ultrasonic keep changing to avoid mosquito adaptation to a certain frequency. Specifications: Color: Black Material: ABS Rated power: ≤3W Input Voltage: 3.7V Input Voltage: 90-250 Battery Capacity: 200MA Working time: 48 hours Charging time: 2 hours Effective coverage: 40-60 sq.m / 430-645 sq.ft Size: 80 * 72 * 25mm / 3.1 * 2.8 * 1in Package Size: 9 * 8 * 5cm / 3.5 * 3.1 * 2in Package Weight: 74g / 2.6oz Package List: 1 * Portable Ultrasonic Pest Repeller 1 * Micro USB Cable 1 * Carabiner