1. Receive signal well. 2. Simple, comfortable, easy to carry. 3. It adequately protects devices from normal scratches, dirt, tear and wear. 4. All buttons and ports are easy to access. 5. With good performance, it can work for a long time. 6. TPU material, non-toxic and odorless, wear resistance, not easy aging, transparent characteristics, more than ordinary plastic has good protective and functional.