[Specifications] Total length: 23.6 inches (600 mm), Total width: 9.1 inches (230 mm), Total height: 17.7 lbs (450 mm); Weight: 10.9 lbs (4.8 kg); Frequency: 2.4 GHz; Charging time: 5 - 6 hours; Running time: 15 - 20 minutes (varies depending on usage); Radio transmission (80 m) Please use products from domestic manufacturers. Li-ion battery: 7.4 V 1,800 mAh; Charger: USB type; *Please purchase a separate USB adapter when charging directly from an outlet. Please note that returns and exchanges due to customer preferences cannot be accepted for differences in the product image shown. The warranty is only 7 days after the product arrives. Please store the order data as the warranty card. If the product is defective, we will repair or refund. We cannot guarantee any modification or disassembly of our product even within the warranty period. Product specifications may change without prior notice. Please understand that there may be some paint chips, small scratches, feces, or packaging damages. When refusing to receive the item, we will refund the product based on the "10% of the return shipping fee + product charge".