How to use: 1. Connect the remote control boat and remote control to the power supply. 2. Turn on the remote control switch. The remote control light flashes to indicate it is waiting for link. After waiting 1-3 seconds, the indicator will stop flashing, indicating that the link is successful. Specifications: Item type: RC boat. Material: plastic. Size: approx. 25 x 10 x 8 cm/9.8 x 3.9 x 3.1 inches. Battery: 3.7 V 500 mAh lithium battery (built-in) Charging time: approx. 60 minutes. Usage time: approximately 20 minutes. Remote control battery: 2 x AA batteries (not included). Remote control distance: approximately 50 metres. Maximum speed: approx. 18 km/h. Suitable age: 14+. Package contents: 1 x Remote Control Boat. 1 x remote control. 2 x propellers. 1 x Remote Control Antenna Cover 1 x charging cable. 1 x User Manual Please note: The remote control is delivered with built-in batteries and the remote is delivered without batteries.