Segment Data

Our operations are comprised of two reportable segments: the manufacture and sale of CEWs, batteries, accessories, extended warranties and other products and services (the “TASER” segment); and the software and sensors business, which includes the sale of devices, wearables, applications, cloud and mobile products (collectively, the “Software and Sensors” segment). Our Chief Executive Officer, who is the CODM, is not provided asset information or sales, general, and administrative expense by segment.

Information relative to our reportable segments was as follows (in thousands):



	Three Months Ended March 31, 2019						Three Months Ended March 31, 2018
	TASER		Software and Sensors		Total		TASER		Software and Sensors		Total
Net sales from products	$	65,301	$	22,788	$	88,089	$	63,524	$	17,450	$	80,974
Net sales from services	90		27,631		27,721		—		20,241		20,241
Net sales	65,391		50,419		115,810		63,524		37,691		101,215
Cost of product sales	23,278		16,322		39,600		20,543		11,891		32,434
Cost of service sales	—		7,293		7,293		—		4,320		4,320
Cost of sales	23,278		23,615		46,893		20,543		16,211		36,754
Gross margin	42,113		26,804		68,917		42,981		21,480		64,461

Research and development	3,712		19,642		23,354		2,960		12,159		15,119