- Stone 20,000 mAh has a High-quality battery, safe and reliable, with stable performance
- Smart chip, top circuit, speed experience,
- International standard USB interface, suitable for most USB devices on the market
- Built-in high-efficiency charge control IC,
- Automatic identification circuit
- Seven composite protection devices, safe and secure,
- Intelligent cooling system,
- Effectively release heat, extend the service life
- Environmentally friendly fireproof shell, matte process, feel comfortable
- Through the aging test to ensure product quality