1. Power supply voltage: 220V (V)
2. Power consumption: 5 (W)
3. Fully enclosed keys, no dust, not easy to cause short circuit
4. Replaceable battery design, battery life is about 2-3 years
5. The switching time can be cycled in days or weeks
6. The shortest time is 1 minute and the longest is 168 hours
7. Use AAA battery for power supply (not included)
8. Size: about 12x5 cm
9. Weight: about 200 grams