kids over 8-12 years old are recommended to use remote control truck. If you have any questions about our remote control car, please feel free to contact the after-sales team through Amazon news, email or official website. <br>1. The wading height of the remote control monster truck is 30mm. <br> 2. The frequency of the remote control car is 2.4GHz, which is more stable. <br>3. The remote control truck lasts 45 minutes and has two rechargeable batteries, so you can use them in turn. <br>4 This all-terrain remotea control car is suitable for a varitey of road conditions <br>5. The remote control truck has three speeds and can be switched at any time. <br>Reminder: kids aged 5-8 or below are better to play with their parents. Do not attempt to charge a non rechargeable battery. Do not mix different types of batteries from different manufacturers. Do not touch the wheels with your hands to avoid injury during driving. Do not expose the vehicle to high temperature, humidity or direct sunlight. The package contains; <br>1 1 / 12 Ratio electric off road monster truck <br>2 1 Complete 2.4GHz remote control <br>3 Equipped with two rechargeable batteries <br>4 1 USB charge <br>If you have any quality problems or lack of accessories, please contact us in time, we will help you solve the problem until you are satisfied.