1)Loudspeakeroutput: 2W(1KHZ,THD10%)2)Sensitivity: 65dB3)LoudspeakerImpedance:4 0.5 Diameter:(32/4 /1W)4)Lithiumbatterycapacity:200mAh5)Lithiumbattery:3.7V~4.2V+0.05V 6)FrequencyResponse:200HZ 20KHZ7)Chargingtime:1hours8)Chargingway:Computer,5VAdaptor9)Availablecolor:Black,White10)Compatiblewithmobilephone,Mp3,Mp4,Ipod,PDA.Etc