SONY RM-X151
Originally supplied with models: CDXF5510, CDXGT07, CDXGT200, CDXGT400, CDXR3310, CDXR3410, CDXR5515X, CDXR5610, CDXR6550, CDXS2210S, CDXSW330, CXSGT07HP
Battery Required : CR2025 Battery
Dimensions: 2.00 x 4.00 x 0.50 (W x L x D, inches)