Authentic DJI RoboMaster S1 Parts - Sold by Authorized Dealer 

Specially designed for the RoboMaster S1, the Gamepad can be connected with the DJI RoboMaster app on mobile devices to allow advanced control of the RoboMaster S1. The Gamepad has four physical buttons for launching, custom skills, random skills, and overheating protection. It also supports external mouse and keyboard use for expanded operating possibilities. 

Note: Specially designed for the RoboMaster S1. USB charger not included.

In the box: 

Gamepad × 1
Micro USB Cable × 1

Built-in Battery: 3.6 V, 2600 mAH, 1S1P
Battery Life: 2 Hours
USB Port Supply Current/Voltage: 500mA/5 V
Charging Time: 2 Hours
Operating Environment Temperature: -10 to 45°C (14 to 113°F)
Charging Environment Temperature: 0 to 40°C (32 to 104°F)