Kyosho Japan Ground Self-Defense Force Type 90 Mini Bluetooth Tank, Forest Green/Brown Camo Extremely detailed model tank with precise Bluetooth control via your smart phone! Two different models with three color schemes allow multiple combatants to engage in maneuvers and tank battles with friends and co-workers Runs for up to two hours on standard AAA alkaline batteries, or until the battery on your smart phone runs out! Features cannon and machine gun sound effects (from your smart phone) English and Japanese compatible app