1. Plug and play， no driver required， connect by AUX-IN and wireless bluetooth<br />2. Adjust the volume and switch the music by rotatable knob adjustment<br /><br /><br />3. High-performance Bluetooth V4.0， support enhances the audio quality， support connect two Bluetooth devices<br /><br /><br />4. Dual USB， support charging for a variety of smart devices<br /><br /><br />5. Microphone built-in， support hands-free calling， one-touch button control to answer the phone， convenient<br /><br /><br />Type: LINK-4808<br />Material: ABS<br />Color: black<br />Dimension: 40 x 26mm<br /><br /><br />Technical parameters:<br /><br /><br />Bluetooth version: V4.0<br />Working range: about 10 meters<br />Bluetooth profile: A2DP/AVRCP/HFP/HSP<br />Power input: DC 3.7V-5V<br />Function: play control and hand-free calling<br />Button: Bluetooth (manual) button， rotatable knob adjustment volume and switch of music <br /><br /><br /><br /><br />Interface: 3.5mm audio， micro USB <br /><br /><br /><br /><br /><br /><br /><br /><br />1 x Bluetooth Receiver<br />1 x Car charger<br />1 x English user manual<br /><img src="http://img6.eachbuyer.com/x9/p100/cq774_1.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/cq774_2.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/cq774_3.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/cq774_4.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/cq774_5.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/cq774_6.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/cq774_7.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/cq774_8.jpg" />