Neglect neither secure driving nor smooth communication by choosing our BT610 Dual Standby Bluetooth V2.1 + EDR Multi-Point Speakerphone for Car Sun Visor! With built-in DSP noise suppression and echo cancellation functions， this Bluetooth speakerphone provides amazing audio effect to flatter your ears. Adopting unique technology， it also supports dual cell phone connection and standby on-line at the same time. Offering high fidelity with a 2W speaker and high sensitivity microphone， our speakerphone will make your driving more entertaining undoubtedly!                                    Features             Support hands-free， headset Bluetooth protocol<br> Unique technology adopted， support dual cell phone connection and standby on-line at the same time<br> Built-in DSP noise suppression and echo cancellation functions<br> High fidelity with a 2W speaker and high sensitivity microphone<br> Compact and space-saving， great for car use <br>                                                            Specifications             Model     BT610    <br> Quantity     1    <br> Color     Black & Silver    <br> Material     Plastic Housing    <br> Connector     USB    <br> Cable Length     100cm    <br> Bluetooth     V2.1 + EDR    <br> Working Frequency Range     ISM 2.4GHz~2.4GHz    <br> Weight     1.73oz / 49g    <br> Dimensions     (4.53 x 1.81 x 0.63)" / (11.5 x 4.6 x 1.6)cm (L x W x H)      <br>                                                             Package Includes            1 x Dual-standby Bluetooth Speakerphone<br>1 x Car Charger Adapter <br>1 x BL-5B Battery (3.7V / 600mAh)<br>1 x Clip<br>1 x Chinese / English User Manual <br>