MCU 51 21 Key Infrared IR Remote Control for Arduino Project/MP3 Player

MCU 51 Infrared IR Remote Control for Arduino Project/MP3 Player

New MP3 remote control with battery

Size: 86 * 40 * 6.0mm 

Remote control range: 8-10 m (infrared receiver itself quality, presence or absence of an obstacle intermediate factors will affect the remote distance) 
Battery: 3V lithium manganese battery button 
IR carrier frequency: 38KHz 
Sticking Material: 0.125mmPET 
effective life: more than 20,000 times