MPF replacement for Logitech Part Numbers: 993-000145, 190582-000,0 993-000237, C-LR65 & L-LU18. * Compatible with the following models: Logitech squeezebox duet 930-000033 & 830-000019. * 3.7V 950mAh Lithium Ion * 1 year warranty * MPF TM and MPF Products TM are Trade Marks