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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
