1)2.0 mini speaker 2)Carry-home,plug and play 3)Can also be prowerd by PC, 4)Up to 10hs playing time(medium volum

1) 2.0 mini speaker

2)Carry-home,plug and play 3)Can also be prowerd by PC4)Loudspeaker output:2W

Features:

Stereo systemsAudio with high fidelityPowered by separate build-in rechargeable batteriesAbout 3-4 hour continuous playback time (medium volume, random music) Each speaker be played by its own amplifier independentlyBe compatible with multimedia devices2 pieces joining-up in parallel available

Specifications:

AMP Freq Range:  180Hz ~ 20KHzS/N:                      >80dBSpeaker:               4Ohm,   40mmLine Input:             3.5 mmRating Power:        2W+2WWorking Time:       10 Hours (medium volume, random music) Build-in Lithium Battery Capacity:  400mAHBattery Voltage:                           3.7VBattery Charging Voltage:             4.2~5VBattery Charging Time:                 About 3 HoursPower Supply Input:                     MINI USB (5V/500mA)Weight:                 0.144kg(2PCS)Dimensions:           60*55mm(single);  60mm*100mm(2pcs hold together)

2.0 mini speaker