This is a large boat measuring almost a metre long.
The controller requires 4 x AA batteries.
The boat requires a NiMH or LiPO battery to run They can be found here. (Lipo is best, as it provides a longer run time, and a little more power)
NiMH - https://rcscrapyard.com/batteries/battery-7-2v-nimh-3600-mah-rc-rechargeable-roto-drill-electric-nitro-starter-usb-charger
LiPo - https://rcscrapyard.com/batteries/7-4v-lipo-battery-2s-50c-6000-mah-hard-case-with-t-style-red-connector-usb-balance-charger