Chengdu Ebyte Electronic Technology Co,;Ltd E90-DTU (433L37) user manualCopyright ©2012–2019,Chengdu Ebyte Electronic Technology Co,;Ltd 17Revision historyversion Date Description Issued by1.20 2019-04-12 initial version Molly1.30 2019-12-21 Size chart LinsonAbout usTechnical support: support@cdebyte.comDocuments and RF Setting download link: www.ebyte.comThank you for using Ebyte products! Please contact us with any questions or suggestions: info@cdebyte.com------------------------------------------------------------------------------------------------------------Fax: 028-64146160 ext. 821Web: www.ebyte.comAddress: Innovation Center D347, 4# XI-XIN Road,Chengdu, Sichuan, China