Dun Yu Tech specialize in manufacturing safe pet products. With over 20 years experience in N/B and PC thermal module assembly fields, Dun Yu Tech is capable of solving all thermal Management issues.To dedicate to the environmental protection business, Dun Yu Tech developed a series of safe pet products : Beetle chew resistant extension cord Beetle chew resistant RJ45 cable Beetle chew resistant USB2.0 cable Beetle season pet pad (heated/cool pet pad)Beetle Supercool cooling pet padBeetle cooling pet pad