Features: 1360-degree physical removal of mites, safe for mothers and babies, high-quality material is durable and ensures long service life. 228500Hz ultrasonic frequency, this frequency is effective for mites, no harm to the human body, no radiation and non-toxic. 3The mite repellent rate is as high as 93.16%, it is compact and easy to carry, can be used in home, business trip, hotel, etc. 4150O large area coverage, the frequency of ultrasonic waves can kill mites in large area when no blocking, drive away mites without dead corner. 52400mAh battery, long-lasting life to remove mites, continuous mode can be used continuously for 15 days when charged, and intermittent mode can be used for one month. Condition: 100% Brand New Item Type: Mite Controller Material: ABS Rated Power: 0.6W Rated Voltage: DC5V Rated Frequency: 50-60Hz Ultrasonic Frequency: 28500Hz Power: Built-in 2400mAh Polymer Lithium Battery Product Size: Approx. 13.5 x 13 x 3.9 cm / 5.3 x 5.1 x 1.5 in Weight: Approx. 283g / 10oz Package Included: 1 x Mite Controller1 x USB Cable (USB Connector Not Included)