Bluetooth li-ion battery speaker (1) can play music by link to mobile phone?mp3?mp4?pc?ipod and other audio devices, if you devices have 3.5mm socket. (2) suitable for promotion, gift, store for sell. Pocket size to carry anywhere (3) charging indicator (4) bluetooth connect to pc/mobile/ipod and so on (5) microphone function (6) support tf card function (7) support fm function (8)nfc (9)options Power supplier:dc5v Output power:5w Frequency: 40hz——18khz Signal&noise ratio:=95db Impedance:4 ohm(o) Output:7.4v+0.05v Input:5v Speaker unit:52mm Case material: Metal+abs Dimensions:77*77*62mm Weight:400g Color:oem Lithium battery capacity: 800mah*2
