Keepin Box Universal Smartphone Timing Lock Box

Portable Student Self-Discipline Cell Locking Case Restrict Mobile Phone Use

- 4.0 Industrial Retro Style
- Longer Battery Life - Normal Use of Up to 60 Days
- Low Voltage Detection Chip
- Phone Can Be Charged During Locking
- Fits Most Phones
- Colour: Blue
- Outer Diameter: 20.8 x 9.5 x 1.8cm
- Inner Diameter: 17 x 9 x 1.2cm