For BMW CAS4 System Intelligent Remote Control Car Key with Integrated Chip & Battery, Frequency: 315MHz 14SepMainIn Car 40HQ: 1937 cartons * 50

40HQ: 1937 cartons * 50 pcs = 96850 pcs

Function: prevent excessive current and protect electrical appliances

The doorbell has 60 built-in chord music

Support 4G(TD-LTE

Adaptation specification: 1/4

For BMW CAS4 System Intelligent Remote Control Car Key with Integrated Chip & Battery, Frequency: 315MHz 14SepMainIn Car 40HQ: 1937 cartons * 501. This is a DIY smart remote control key with a frequency of 315MHz with an integrated chip. 2. The key includes key housing, key blade, circuit board, integrated chip and battery, which is a complete remote control key. 3. You will need to program the key and cut the key blade at a car locksmith before using it. 4. The keys are suitable for CAS4 systems with the same frequency, if they do not match, please do not buy them. 5. KR55WK49863 comes with