1. Functional upgrade version: independent operation with 15W high-power charging, supporting three different devices for charging, and supporting wireless charging for mobile phones, watches, and headphones
2. Charging upgrade version: Upgrade the smart chip for low-temperature, high-speed, and safe charging
3. Security upgrade version: Automatically switch to trickle when fully charged, without damaging the battery, temperature controlled NTC, constantly detecting heat generation dynamics
4. The built-in magnetic isolation sheet is harmless to the human body and can be used by pregnant women with peace of mind.