Features: 1. and high quality 2.Durable ,long lifetime guaranteed 3.Perfect fit,easy to use 4.Perfect aftermarket replacement Button Quantity:4(Lock,Open,Trunk,Alarm) Frequency:433 MHZ Transponder Chip:No Electronics/Battery:No Chip ID:Fit For Your Old PCF7935AA ID44 Chip Fitment: for 325 330 318 525 530 540 E38 E39 E46 M5 X3 X5 E65 Note: Pls check your vehicle model before you purchase. The chip and battery are not included. Material:plastic colour:Black + Silver Package Contents: 1 x Remote Key Only 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.