MODEL: RM-SR664U
RM-SR664UKP
Originally supplied with models: DSPT100, RMSR664U, RMSR884UKP, RX664UBK, RX664V, RX664VBK, RX664VBP, RX684VBK, RX684VBP, RX884BK, RX884UBK, RX8884VBK, RX888V, RXA884VKB
Battery Required : AA Battery 2 pack
Dimensions: 2.00 x 6.00 x 1.00 (W x L x D, inches)