GreenWorks 23012 40-Volt Lithium Ion String Trimmer with a 40-Volt Blower Combo set with a 40V string trimmer and 40V blower Lithium Ion battery power provides up to 45 minutes of continuous run time Both products backed by a 4 year warranty Special combo pack with string trimmer and blower both included Low cost power with battery recharge costing about 5 cents