SpecificationsMax. Screw Diameter 5 mm Max. Torque 7 Nm No Load Speed 0 - 250 rpm Battery Voltage 3.6V / 1.3Ah Charger AL1115CV Charging Time 60 minutes // This product charger Supports 220V (Europe C Type Plug). to use this products/ you should check the voltage/ frequency(Hz)/ and the shape of the plug of your country. Based on Korean type is 220V /60 Hz. But/ ﾡﾾ10% difference can be used. Most of the countries in Europe use 230V/ But 220V products can be used without a transformer as well. non 220V/60Hz country will should purchase transformer. to use this product stably and it must support at least 20% higher than an item's power consumption(Watt). (Especially USA buyers) Any damage or malfunction happens due to voltage &amp; frequency(Hz) problems/ seller is NOT RESPONSIBLE for this. In case Motor / heating product/ transformer should check to "current capacity" due to Initial product start-up current. (transformer safety current capacity is 2 to 3 times high more than product ) please note before the purchase!<br />