... *3W. *Various color available. *CE&RoHS Mini USB Speaker for Mobile Phone Model No.: GVMS-1041)Housing material: Aluminum2)Output: RMS 2 ... : ≥ 80dB5)Loudspeaker: Dias 45mm, 4 Ohms, Diameter: (45/4Ω /3W)6)Line input: Configure 3.5mm stereo's plug7)FM Radio ... : Build-in lithium battery 550mAh, USB9)Compatible with iPhone & iPod, mobile phone, MP3, MP4, iPod, PDA. etc10)Size: 17*5*5.3 ...