[Discontinued] ToolPAC ES121 Motion Sensing Smart Screwdriver

ES ToolPAC Series: Difference Model ES121 ES120 Gear Box 1:64 integrated planetary gearbox 1:144 integrated planetary gearbox No-load Speed 380RPM 170RPM Maximum Torque 1.5kgf.cm 2.5kgf.cm  How to choose between ES120 and ES121? If you want faster speed, we suggest you choose ES121. If you want larger torque, we suggest you choose ES120. SPECIFICATION Work Voltage: DC 3-5V.  Material: 304 stainless steel.  No-load Speed: About 380rpm.  Maximum Torque: 1.5kgf.cm. Charging Time: 45min.  Running Time: 30min (full power).  Charging Mode: Micro USB 5V Input.  Screen: 16*96 OLED.  Battery: 300mAh 10440 Lithium-ion battery.  Rotor: Bidirectional overrunning clutch.  Gearbox: 1:64Integrated planetary gearbox.  Motor: 25,000 rpm brush motor.  Main Chip: STM32.  Sensor: Angular velocity sensor.  WHAT'S IN THE PACKAGE 1 x ES121 Electric Screwdriver 1 x SL2.0 Straight Screwdriver Bit 1 x PH00 Hex Screwdriver Bit 1 x ES-B7 Screwdriver Bits Set(7pcs) 1 x ES-A7 Screwdriver Bits Set(7pcs)