Products Details:
Features: Bluetooth, Hands-free call, Support TF Card, FM Radio
Support: Computer, Ipad, Mobilephone, Bluetooth, TF Card, Volume Control
Function: Stereo
Interface: Micro USB port, Power charge Port
Audio Source: Bluetooth Enabled Devices
Material: ABS Plastic
Shape: Round
Color: Red, Blue, White, Yellow, Black
Bluetooth Version: V2.0+EDR
Loudspeaker output : 3W RMS
Operation range: up to 15 meters,
Function Key:Volume +/-, Dial up/Hang up
Volume adjusting: long press the " + & -" key
Song switching: shortly press the " + & -" key
Frequency response: 100Hz to 20kHz
Signal-to-noise: More than70dB
Distortion: Less than or equal to1.0%
Built-in rechargeable Li-ion battery: 550-600mAh
Playback time: 6 hours
Output: 3W
Input: DC 5V
Power supply: USB port
Product Size(L*W*H): 78*78*78mm
Package Size(L*W*H): 100*100*100mm
Product Weight: 165G
Portable Bluetooth
How to use FM Function:
1. Connect the power cable with Speaker (Not connect with Power)
2. Change the mode to "Fm Mode"
3. Press + or - key to choose signal, or Double press Phone Key going to auto search signal mode.

Note:
Do not drop the speaker into the water
You can press the phone call button twice quickly to redial the last phone call