Keyfob Description: This is the NuStart NU4500R Replacement 2-Way Remote Control. Compatible With These Systems: NUAS-4500,NUA-4500NUS-4500 FCC ID: VA5JR702F433 IC ID: 087A-R702F433 Model Number: NU4500R Compatible Antenna Number: ANT-2WFM, NU4000ANT Transmitting Frequency: 433 MHz Is this a 1 Way Keyfob?: No Is this a 2 Way keyfob?: Yes Battery Type: AAA (Triple A) Keyfob Colour: Grey LED Colour: (LCD Display)