> 433MHz Rolling Code technology > 500PIN/card users > 4~8 digits PIN, 125KHz EM card > Communication distance: 50m Max > Open/Close by Keypad, transmitter, or touch the lock
> Wireless Lock> With 4pcs Remote Transmitters> The lock can pair Max.16 Remote Transmitters> 433MHz Rolling Code technology> Communication distance: 50m Max> Wireless Lock operated by 2 units AA batteries