These are brand new Japanese model GBAs (there is no country lockout on them, so they are identical to the US models).
http://www.ncsx.com/2004/ncs051004/shs_249.htm
Update: The link appears to be non-working for now (its replaced with Baseball Stars for the NGPC) but might get fixed in the future, I'll keep my eyes open.
http://www.ncsx.com/2004/ncs051004/shs_249.htm
Update: The link appears to be non-working for now (its replaced with Baseball Stars for the NGPC) but might get fixed in the future, I'll keep my eyes open.