Features SMART ULTRASONIC TECHNOLOGY – Cleaning pen is activated by the power of ultrasound vibrations that generate bursts of bubbles to penetrate and break up stains on clothing and other surfaces FAST & EFFECTIVE STAIN REMOVAL – Fresh stains are easily cleaned in under 1 minute, while stubborn spots can be effectively removed when a small amount of detergent is used in addition to ultrasonic mist VERSATILE CLEANING – Not only cleans clothing stains but can be used for jewelry, watches, glasses, shoes, fruits, and vegetables, and more PORTABLE – Lightweight, travel-friendly device operates wirelessly using USB rechargeable battery for convenient cleaning when on-the-go ENVIRONMENTALLY FRIENDLY – Works effectively with minimal to no amount of detergent or decolorizer that is harmful to the environment Support Manual - Ultrasonic Cleaning Pen (PDF) [TABS] Specification Battery Type Rechargeable Lithium Battery Capacity 2200 Mah Charging USB Oscillator Frequency 51 kHZ Working Temperature Normal Product Size 36 x 150 mm[/TABS]