1.100percent new 2.Better fitting ,solid case and buttons 3.,long guaranteed 4.Perfect aftermarket replacement Button Quantity:4 (Lock,Unlock,Trunk,Headlight) Electronics/Battery:Yes (CR2450) Chip: Yes (PCF7953P/PCF7945P) Frequency: 868MHz Manufacturer Part Number:KR55WK49863 , 267T-5WK49863 Fitment: For X3 2011-2018 For 7 Series CAS4 CAS4+ 2011-2018 For F Series FEM / BDC 2011-2018 For 5 series 520 525 530 535 2011-2018 For 7 series 730 740 750 2011-2018 Note: Pls check your vehicle model before you purchase. The keyblade needs to be cut at your local dealer or qualified locksmith. colour: black Material: plastic Package Contents: 1 x Remote Key with CR2450 battery Only the above package content, other products are not included. Note: Light 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.