Heng Long is upgrading all their older tanks to their newest controller, receiver and smoker, so now its 2.4ghz, all your controls, switches and speeds is now on the controller, plus newest smoker. you now get 5 sound volumes and 4 speeds on the turret. Only switch or button on the tank is the on and off, all include a better 1800mah 7.4v Li-on battery. On my sherman I use a Rhino 2150mah 7.v Lipo or also the heavier 3000mah 7.2 nimh. Here are some pics and video I shoot real quick after I got it.



https://www.youtube.com/watch?v=3vUxq2b-ikk