Type : Wireless Series KEYDIY Remote Key NB08-3+1Button: 4 ButtonsTransponder Chip: YESElectronics: YESBattery: NOThe following 5 functions in one key:-ATT-36-ATT-46-ATT-for --for -XTT-new for The Remote Controls have built in electronic transponder chip for car models.All remote controls for KD900 can make remote controls with 300-500 MHZ frequency,as well as 310 MHZ, 313 MHZ, 314 MHZ, 315 MHZ, 433 MHZ and so on.There are 5 different models of series:-ATT-36 is for and and old (mose 2013) and (default keys are -36 models)-ATT-46 is for , and most , and come other keys with PCF7946 Chips.-ATT- is for car keys-- is for new , ,opel -XTT-new is for 2014 and 2015 new car keysSupported Devices:KD900KD900+URG200-X2Colour:black+silverMaterial:ABSPackage Contents:5 x Car Remote KeyOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.