  We have obtained HST WFPC2 and ground-based images of two low surface
brightness dwarf spheroidal galaxies in the M81 group, FM1 and KKH57. Their
colour-magnitude diagrams show red giant branches with tips at I = 23.77 +-
0.14 and I = 23.97 +- 0.17, respectively. The derived true distance moduli,
27.66 +- 0.16 and 27.96 +- 0.19, agree well with the mean distance modulus of
the M81 group, 27.84 +- 0.05. Absolute V magnitudes of the galaxies (-11.46 and
-10.85), their colours ((B-V) = 0.88 and 0.80), and central surface
brightnesses ($\Sigma_{0,V}$ = 24.8 and 24.4 mag/$\sq\arcsec$) are in the range
of other dSph companions of M81, M31, and Milky Way. With two new objects the
maximum projected radius of the dwarf spheroidal subsystem around M81 is 380
kpc.
