RM597150A55, RMS455, MHC450
Originally supplied with models: HCDH450M, MHC450, MHC450//M, MHC450M

Battery Required : AA Battery 2 pack
Guaranteed Compatible Universal : Anderic RRU401, Use code: 4243, 4244, 4164, 4244... (click here for programming instructions)
Dimensions: 2.00 x 6.00 x 1.00 (W x L x D, inches)