Portable Super Bass Audio Hi-Fi Mini Wireless Bluetooth speakers TF Card:

Power supplier: DC5V
Output power: 3W(1KHz,THD10%)
Frequency: 60Hz-18KHz
Signal&noise ratio: ≥95dB
Impedance: 4 OHM(Ω)
Li-ion Output: 3.7V~4.2V+0.05V 
Li-ion Input: 5V 
Lithium battery capacity: 500mAh
Speaker Unit: 40mm
Case Material: ABS
Dimensions: Dia60mm*H60mm*53mm
Weight: 217g
Color: White/Black

Super Bass Portable Speaker

(1) Built-in intelligence decoder,can play mp3 which you out in the Micro-SD card.

(2) Built-in FM Modular,Magnetic antenna,Serach and Save radio station.

(3) Volume Control Through rotaing,so you can control Volume more freely.

(4) Bluetooth wireless streaming from Iphone,Ipad or any other smartphone also compatible table,includes a built-in microphone for hands-free calls,supports Bluetooth A2DP.