1. Material: stainless steel
2. Weight: 30 grams
3. Size: 11.5x1.6 cm
4. Battery: Lithium polymer rechargeable battery
5. Power: 50mA x3.7v, 0.185WH
6. Rated voltage: 3.7V
7. USB straight plug interface, easy to carry
8. Three-in-one lamp holder, purple light currency detector, white light illumination, red light funny cat, multi-purpose