YR137

WIRELESS: 4.2
Output Power:  3V, 2W
Battery Capacity:  1200 mAh
Play Time:  4 Hours
DC Input:  5 v
Product Height: 7.65CM
Impedance: (Ω) 6
Frequency Response (Hz): 2.4 G
FM：88-108Hz
SW：5.9-18Hz
AM：530-1710KHz