From the TM-D710A yahoogroup :
[log in to unmask] writes :
I am selling my TM-710A with the voice announcement module installed
if anyone is interested, i bought it to use with the AVmap G5, i went
through 2 avmap g5's and returned them before i decided to sell the
710A. has never been used to transmit and is only 6 months old and in
mint condition.
Contact me off line if interested.