Model: GF-831Pro.Spc.: 12*90*6cmFunction explanationFixed Power:3WFixed Resistance:4Erequency response:275-20 Ks(Hz)Power supply electric voltage:3VN.W.kg: 0.3kg/pcCtn./Size(cm): 40*35*40Qty/Ctn(pcs):

Model: GF-833Pro. Spc.:14*13*6cmFunction explanationFixed Power:3WFixed Resistance:4Erequency response:275-20 Ks(Hz)Power supply electric voltage:3VN. W. Kg:0.3kg/PCCtn. Size(cm):40.35*40Qty/Ctn(pcs):

Model: GF-841Pro.Spc.: 20*7*3.2cmFunction explanationoutput power:0.9W * 2Power supply frequency:50/60HZThe power enlarger Input sensitivity:>83 DbasIntelligent degree:470MVThe circuit importation res

Model: Gf-851Pro. Spc.:20.7*5.3*6.2cm(open dim)10*6.3*6.7cm(flod-able dim)Function explanationPower supply: Battery(aaa 1.5v*4), DC 5v(usb cable for pc), or AC power adaptor cord(output 6v,300-800ma)S

Model: GF-854BPro.Spc.: 15.5*15.5*6.5cmFunction explanationpower supply DC 6 Volt ( AAA batteries * 4 )Or AC adaptor output powr =2+2W/channel, @8 OHM @10% THD speaker 34mm speaker , 4ohms signal cabl

Model: GF-858APro.Spc.:18*12*30cmFunction explanation:Input sensitivity:500mV OutputPower:2W*2 8(OHM) 10% TDHSpeaker:1.25inch*4,4(OHM) 3WFunction: Vol+ Vol- Control, Power, SwitchAA Size Battery (not

Model: gf-861Pro.Spc.: 25.8*22.5*5.5cmFunction explanationOutput power:8 5w*2Rated impedance:8Frequence response: 20hz - 20khz thd:For all ipod and mobile jackN.W.Kg: 12kg/ctnCtn./size(cm): 59*56*39mQ

Model: GF-898Pro.Spc.: 16*10*2.8cmFunction explanationPower: The DC 6.0 Vs("AAA" x 4 batteries) or the ACOutput power: The 2.5 W * 2(1 KHz 10% THDs)The frequency respond to: 100Hz-20KHzSpeak

Model: GF-9188APro. Spc.:27*22.8*7cmFunction explanationFrequency: FM 88-108MHzDistortion:0.7% FrequencySound:90Hz-250Hz FidelityRate:2W*2+6WN. W. Kg:16kgCtn. Size(cm):30*46*44Qty/Ctn(pcs):30*46*44Qty