1. Use environmentally friendly silicone material, four corners thickened design, anti-fall.
2. The back grip is designed to be comfortable, easy to hold and not slipping.
3. The top sensor is open and the signal is smooth, avoiding multiple button presses.
4. The charging hole is reserved at the bottom, which is convenient and quick to charge, and it is not necessary to remove the protective cover.
5. Small in size and does not take up space.
