Slivery color , Portable Wireless Bluetooth Speakers , bluetooth 3.0 , with TF card , Handfree call

Spec:
1: bluetooth version: V3.0 + LDR
2: bluetooth transmission distance: 10 meters, with a bluetooth phone  /  hands-free
3: frequency response range: 100 hz - 20 KHZ
4: signal-to-noise ratio: 84 db or higher
5: sensitivity: 80 db + 2 db:
6: the output power: 3 w * 1
7: distortion rate of 1% or less
8: the speaker specification: 4 Ω 3 w Φ 40 mm
9: input power supply: dc DC5V1000MAH
10: working voltage: 3.0 to 5.5 V
11: playing time/charging time: 180Min / 120Min
12: standard parts: 3.5 mm audio input and MIN - USB charging line
13: interface: support TF card,  audio input,

Feature:

High class outlook design, stereo bluetooth module, support TF card music files like MP3,WMA,AMR,FLAC,APE,Vorbis, etc audio playback, 3.5 mm stereo audio LINE-IN inout, connect freely with notebook, digital devices, tablets, USB charging power, long continuous playing time