New style thousands kilometer two-button remote control
keywords：
look：
Technical Parameters:
Operating frequency: 315Mhz / 433Mhz
Chip Type: PT2262 / EV1527
Code Type: welding code or one million fixed set of codes
Oscillation Resistance: 1.5M / 4.7M
Modulation: ASK
Remote control distance: 1000m (open Air)