I can get the professional and battery pack or just the upgrade version with the battery pack as well and maybe a few other accessories. My biggest question I suppose is, would it be better to get the professional or the upgrade version? I would like to drive it out in the dirt and grass (nothing heavy like sand or mud) and carpeted floors. I have a budget of $250 and this model fits in that budget along with the extra battery pack as well (Admiral 3500mAh 2S 7.4V Li-ion Battery with XT60 Connector). They are the tank crew that was featured in the documentary I saw as well. I just started reading the book Spearhead about one of the first, if not the first, Pershing tank crews at the end of WW2. I am considering purchasing this one because I remember seeing a documentary about the tank battle between a Pershing and Panther tank in Cologne. It was fun for a while but kind of went downhill rather quick. I have had one before but it didn't really work out too well, I forget the name but it wasn't a Heng Long tank. I am making my first purchase on a RC tank. Admiral 3500mAh 2S 7.4V Li-ion Battery with XT60 Connector.Six (6) AA size batteries for the radio transmitter – we recommend Admiral NiMH AA Rechargeable Batteries (6 Pack).Magnetic Infrared (IR) battle system receiver.2S 7.4v 1800mAh Li-ion battery with XT60 Connector.Heng Long USA Pershing Upgrade Edition 1/16 Scale Battle Tank - RTR.Independent suspension on all road wheels.

Up to 20 tanks at the same time can battle each other! Fires an invisible IR signal to be used as part of Heng Long's Infrared Battle System, which disables other tanks when hit five times during simulated combat.Fires a 6mm plastic BB (10 meters with minimal accuracy and limited velocity, but should still be treated with caution and with adequate eye protection).

Track Recoil (Three settings from low, medium, and high) -This shudders the tank briefly rearward to simulate recoil when firing the main cannon.

Each contains a unique engine start, idle, accelerating, traverse, elevate, machine gun, cannon firing, and shutdown sound

Programmable radio settings for the amount of recoil, the sensitivity in turns, the overall sensitivity in acceleration, high speed and low-speed modes, etc.

Proportional acceleration, steering, turret traverse, and gun elevation/depression.

Latest Generation TK7.0 Multi-Function Control Board (MFCB).

The convenience of the 'Ready to Run' (RTR) format allows new enthusiasts to join the world of RC Tanks with ease!

1/16 rc battle tank charger