Weighing Scale.Rechargeable accumulator inside, you can use the scale during recharging. .Auto zero-setting when switch on the Weighing Scale 1.Rechargeable accumulator inside, you can use the scale during recharging.2.Auto zero-setting when switch on the scale.3.Auto zero-tracing. 4.1~100 times of accumulating.5.Power supply: AC 220V (±10%) / 50 Hz, 110V/60HZ, DC 6V / 4Ah (Rechargeable ...