Model Number: BE13 Type: Active Use: Portable Audio Player,Computer,Outdoor Special Feature: Portable,Mini,Wireless Speaker: Mini speaker Buletooth Version: V3.0 Working Range: UP to 10m Working Time: 10 Hours Loudspeaker Output: 4W Frequency Response: 280Hz-16KHz Color: black,white, ,blue,red,purple Battery Change Time: 2hour Radio frequency: 2.402 -2.480 GHz sensitivity: - 32 db Receiving sensitivity: > 82 DBM Impedance: 2.6 Ω Voice unit: 40 mm units Access interface: 3.5 mm The maximum output power: 4 w Battery capacity: 600 mah Music playing time: 5 hours talking time: 7 hours Support TF card:8 GB TF card