Main Features:<br />Wheel shape design， offering better visual experience<br />Using Bluetooth 2.1 + EDR technology， long transmission distance up to 10 meters<br />Compatible with all Bluetooth enabled digital devices<br />Enjoy hands-free phone calls and music in the car， making your driving or trip more elegant and safer<br />Enable directly playing MP3 files in TF / micro SD memory card， support TF card up to 32GB<br />Built-in lithium battery， extending the playing time for outdoor use<br />Conveniently charged via USB cable<br />Compact size of ease for carrying anywhere<br /><br />    Specifications<br />Primary Features<br />	 Model: GM001                                                  <br />                        Design: Portable， Car， Cool， Fun， Multifunctional                                                  <br />                        Supports: TF Card Music Playing， Microphone， Loudspeaker， Bluetooth， Hands-free Calls， Volume Control                                                  <br />                        Functions: Stereo， Songs Track                                                  <br />                        Compatible With: MP3， iPhone， MP4， PSP， MP5， Laptop， Mobile Phone， Tablet PC， PC， TF/Micro SD Card， iPod                                                  <br />                        Connection: Wired， Wireless                                                  <br />                        Interface: 3.5mm Audio， USB2.0， TF Card Slot                                                  <br />                        Audio Source: TF/Micro SD Card， Electronic Products with 3.5mm Plug， Bluetooth Enabled Devices                                                  <br />                        Color: Blue， Black， Red                                                	<br />Technical Parameters<br />	 Bluetooth Version: V2.1+EDR                                                  <br />                        Transmission Distance: W/O obstacles 10m                                                  <br />                        Freq: 100Hz-18kHz                                                	<br />Other Parameters<br />	 Power Source: USB， Battery                                                  <br />                        Charging Voltage: DC 5V                                                  <br />                        Operating Range: 10m                                                	<br />Dimension and Weight<br />	 Product Weight: 0.148 kg                                                  <br />                        Package Weight: 0.152 kg                                                  <br />                        Product Size (L x W x H): 6.1 x 6.1 x 6.1 cm / 2.40 x 2.40 x 2.40 inches                                                  <br />                        Package Size (L x W x H): 7.1 x 7.1 x 7.1 cm                                                	<br />Package Contents<br />	 Package Contents: 1 x Speaker， 1 x USB Cable， 1 x User Manual                                                	<br /><br /><br /><br />                                            <br /><br /><br /><br /><br /><br /><br />                                                <br />