... , MP3,MP4 and other cellphones with Bluetooth etc The newly Bluetooh speaker 1,Alluminum alloy material, compact and durable, easy operation ... 2,According to the latest Bluetooth BT3.0+EDR standard;3,Unique hidden touch buttons;4,Automatic reconnection function & Bluetooth hands- ... :300mv4.Response Rate:75dB5.Frequency Response:80-18KHZ6.Loudspeaker:33mm*1,4Ω,3W7.Audio Input : 3.5cm stereo 8.Battery ...