Note:Default frequency is 315MHz. You can Remove PCB FRE resistor change to 433.92MHz. Orset frequency to433MHzby MB TOOL software. New Upgrade MB BE KEY V1.2 VersionNew Function Added : 1.Lifing Car Window2.IR Remote Control CGDI MB BE KEY High lights : 1. Support all FBS32. Never lose synchronization3. Support Automatic Recovery4.Suitable for 208,203,215,210.220.211.209,164.221.216.166.169.639.204.207.2125.Applicable models: W221 W216 W164 W251 After Year 2009 Including: S Series, ML Series, GL Series and R Series.6.You canget 200 bonus points when use CGDI MB to program this key.200 points= 1 token for CGDI MBFor the points, if you don't need to change for token, you can also exchange for other device on CGDI online store later. Advantages for Using CGDI MB BE Key: 1. Support for Mercedes-Benz van power slide door.2. Solution for the car start failure with 4 times continusous insertion and extraction.3. Solve the problem of code hopping for after- the for Mercedes-Benz 2019 ML series, R series, GL series key after use for a long/short time.4. Solve the problem of the old for Mercedes-Benz 210-220 which can not be automatically activated and need use the device to activate.5.The automatic frenquency (315mhz-433mhz) setup.6. Key can be reusable.7.The key with 200 points bouns.8.Point bonus as exchanged for token to calculate paword or exchange CG any product.9. One Year warranty, please confidently purchase . Automatic frenquency (315mhz-433mhz) setup: Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.