MCU Development Board 21 Button Remote Control (1 x CR2025)
Black and silver plastic material - Use a CR2025 button battery (in pack) - Tube infrared wavelength: 940nm - Crystal: the oscillation frequency: 455 KHz - IR carrier frequency: 38KHz - Remote control distance: more than 8 meters - Effective life: 20000 times - For the USB card audio remote control / Car MP3 remote control / Foot bath remote control / Lighting remote control / Digital photo frame remote control / MCU remote control / Development board remote control