Yocan has always set itself apart and try something new with the technology. The featured Kodo battery can match all the 510 threading oil atomizers on the market. One battery is enough. The Yocan Kodo Box Mod Battery is a portable palm-sized atomizer battery mod, it's a very compact and stylish vaporizer. The features of the Kodo Box Mod Battery: Dimensions – 52mm by 20mm by 17mm Fit Your Favorite 510 Cartridges Small and Compact Design 400mAh Battery Capacity Preheat Mode: Click the power button 2 times Adjustable voltage: Tap fire button 3 times to change 2.5V / 3.0V / 3.5V option. ( 2.5V: one green light / 3.0V: two green lights / 3.5V: three green lights). Short-Circuit Protection: 3 green lights flashing 3 times Low Voltage Warning: 3 green lights flashing 10 times Micro USB Port Charging System Proprietary Magnetized Connection 15s cut-off: 3 green lights flashing 8 times Learn more information about Yocan Kodo Box Mod.