1:many specification for your choice
2:conivent usage
3:high quality with reasonable price

Voltage: 18V, 230V~50Hz
Power: Li-ion, 1*1300mAh
No-load speed: 0-350/0-1250rpm
Clutch: 22+1 setting rings
Hammer frequency: 0-5950/0-21250rpm
Max torque: 25Nm
Chuck: 2-13mm keyless chuck with lock
Charge time: 1 hour, GS
Switch: forward & reverse
Motor brake: yes
LCD: yes    LED: yes.