CASHIDO Portable Ozone Disinfectant and Deodorizer OA-100B (Used) *Power on and button operation confirmed.* ■Included Items Main unit, USB charging cable (USB A to USB Micro B / 100cm), Instruction manual *A faint metallic sound may occur during the ozone release and stop cycle, but this is not a malfunction. (↑ Quoted from the website)* ■Product Specifications Product Name: Ozone Disinfectant and Deodorizer Material: Aluminum alloy Dimensions: φ65mm x 170mm Weight: 280g Ozone Emission: Maximum 5-6mg/Hr Usable Area: 10m2 Operating Environment: 5°C to 40°C Charging Time: Approximately 6 hours Operating Noise: 3dB (Low mode), 21dB (High mode) Country of Origin: Taiwan 【Notes】 ・Power on and button operation confirmed. ・Purchase date and usage are unknown. ・Almost no signs of use, in a clean condition. Please check the photos. ・The USB cable is unopened and unused. ・Included items are the main unit, USB cable, instruction manual, and outer box only. ・The outer box has scratches.