Feature:1. Shell surface UV process, good hand feelings, negative ion release more than 20 million /cm2. Superlarge capacity battery, standby time over 28H, high reliability and durability.3. One button control switch, simple and practical to use, convenient and easy to operate.4. Central replaceable acrylic panel. The body is processed by ultrasonic technology, beautiful and fashionable.5. 200mAh Builtin lithium battery, come with USB charging cable of the package for easy charging.Specification:Item Type: Wearable Air PurifierMaterial: ABSPower Supply: Built-in lithium batteryBattery Capacity: 200mAhUsage: 1. Press the power button, and the working/battery indicator light will always be white.2. The battery indicator description three bright: power is more than 75%, 2 bright: power is more than 50%, 1 bright: power is more than 25%, 1 flash: power is less than 25% under the charging state, the indicator flashes, after full charge automatically shut down.Note:1. The device cannot work while charging.Please charge the device using a 5V power supply.2. The heat purifier produces negative ion group in the process of operation, which has strong ability of adsorption and settling dust.After using for a period of time, please clean the dust around the machine in time.The purifier is equipped with negative ion module and high pressure ozone module. Do not disassemble or repair by unauthorized technicians.3. Please do not block the negative ion brush head inside, so as not to affect the purification effect.Package List:1 x Wearable Air Purifier1 x USB Cable 1 x Manual