TRX Personal Transporter 36v It has two 150 watts belt drive electric motors and can travel at a max speed of 12 miles per hour. Recommened Age: 12 and up Battery System: 36 Volts 7Ah (Three 12v Batteries) Charger Included Battery life: Over 300 charges Powered by a Rechargeable 36 Volt 7 AH 3-Battery Pack