I am really suspicious of the whole transaction.

Find a different seller.

Futaba radios always come with a battery pack for the transmitter. If purchased as a Transmitter/receiver combo, then the receiver will have a battery pack as well.

The Transmitter has 8 cells, the receiver has 4. They are always Ni-Cd (Nickel-Cadnium) cells. There is also a charger supplied with the combination set (TX and RX), and normally some servos.

It sounds to me that the seller is a cheat, and is trying to unload a bunch of mis-matched hardware. I would not trust them with $1 let alone a transmitter that for all you know has been used to fish with!

gus