Hign-concerned Chemical:none Model Name:For Phone as key Download Phone As Key App Press button on key kit one time andthen long press it for at least 3 seconds until theLED light flashing to turn iton Enter device setting page on right topof App--Device Management-- Scan to adddevice and change password as it asks Generate remote and program to car un-der Car Washing Mode. (Need professio-nal locksmith or car repairing people to do it) Atergamming is fnished please transferit to Anti-theft Mode.Se sesing dstance for kyles entryofthe phone ithe clbration function onthehomepageacording to personal preferences Colour:black Material:ABS Package Contents: 1 * key 1 * cable Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.