Cooler mini speaker with TF/Micro SD port portable/MP3 speaker for Laptop / PC

* Application: laptop, notebook ,PC, tablet PC, plug into TF/Micro SD Card

* Battery parameters: polymer lithium battery 350mA

* Output voltage:+3.7V(Do not dispose of the fire)

* Speaker parameters: Rated impedance 4 Ω 2W

* Play time:2-3hours (depending on the size of the sound volume)

* Charging time: 1-2hours

* Music Speckfication:MP3

* Material: ABS

* Dimension(mm): 78(L)x62(W)x45(H)

* Packing Size(mm): 156(L)x107x67

* Weight(g): 62/100

* Package include: 1x USB cable

Using methods:

1) The switch is ON, TF/Micro SD card in slot ,the music automatically play.

2) The Middle button to pause or Play button,left button Gently press is the previous song conversion, press and more than 0.3 seconds will switch to reduce to the volume. Right button Gently press is next song conversion .Press and more than 0.3 seconds will switch up the volume.

3) Using USB cable to charge. When the red light turn green and the light is shining. When the light is keeping green ,the charging is full. Please disconnect the USB cable to ensure about the battery life.