BZ634311, M221
 Originally supplied with models: M221, M226, M226L, M231
    
        
        
    
    
                    Battery Required :  AA Battery 2 pack
                
                    
                        Guaranteed Compatible Universal
                        : Anderic RRU401, Use code: 
3008, 3007 (
click here for programming instructions)
                 
Dimensions: 2.00 x 6.00 x 1.00 (W x L x D, inches)