Mode of operation: mechanical
Timing function: 2-8 hours
Power supply mode: USB, lithium battery, car power supply, AC
Rated voltage: 5 (V)
Rated power: 2 (W)
Rated frequency: 50-60 (Hz) (Hz)
Color: SY-1 new model (black-with battery version), SY-1 new model (white-with battery version), SY-1 new model (black-no battery version), SY-1 new model (white-no Battery version)