The specific using steps in details, please see the user manual.<br><img src="//agdetail.image-gmkt.com/m430/858/184/599184858/img/agdetail.image-gmkt.com/858/184/599184858/img/des.chinabrands.com/uploads/2015/201508/heditor/201508061104049027.jpg" alt="H - 366 Multi-point 2 In 1 Wireless Bluetooth 4.0 Hands Free Phone Music Audio Receiver Adapter for Car One Connected to Two devices" /><br /><br><img src="//agdetail.image-gmkt.com/m430/858/184/599184858/img/agdetail.image-gmkt.com/858/184/599184858/img/des.chinabrands.com/uploads/2015/201508/heditor/201508061104077987.jpg" alt="H - 366 Multi-point 2 In 1 Wireless Bluetooth 4.0 Hands Free Phone Music Audio Receiver Adapter for Car One Connected to Two devices" /><br /><br><img src="//agdetail.image-gmkt.com/m430/858/184/599184858/img/agdetail.image-gmkt.com/858/184/599184858/img/des.chinabrands.com/uploads/2015/201508/heditor/201508061104112855.jpg" alt="H - 366 Multi-point 2 In 1 Wireless Bluetooth 4.0 Hands Free Phone Music Audio Receiver Adapter for Car One Connected to Two devices" /><br /><br><img src="//agdetail.image-gmkt.com/m430/858/184/599184858/img/agdetail.image-gmkt.com/858/184/599184858/img/des.chinabrands.com/uploads/2015/201508/heditor/201508061104146706.jpg" alt="H - 366 Multi-point 2 In 1 Wireless Bluetooth 4.0 Hands Free Phone Music Audio Receiver Adapter for Car One Connected to Two devices" /><br /><br><img src="//agdetail.image-gmkt.com/m430/858/184/599184858/img/agdetail.image-gmkt.com/858/184/599184858/img/des.chinabrands.com/uploads/2015/201508/heditor/201508061104187862.JPG.jpg" alt="H - 366 Multi-point 2 In 1 Wireless Bluetooth 4.0 Hands Free Phone Music Audio Receiver Adapter for Car One Connected to Two devices" /><br /><br><img src="//agdetail.image-gmkt.com/m430/858/184/599184858/img/agdetail.image-gmkt.com/858/184/599184858/img/des.chinabrands.com/uploads/2015/201508/heditor/201508061104218611.JPG.jpg" alt="H - 366 Multi-point 2 In 1 Wireless Bluetooth 4.0 Hands Free Phone Music Audio Receiver Adapter for Car One Connected to Two devices" />                 <strong>Model  :</strong> H - 366 <br />             <strong>Special Function  :</strong> Bluetooth <br />             <strong>Color  :</strong> Black                               Array             <strong>Package weight:</strong> 0.112 kg <br />             <strong>Product Size (L x W x H)  :</strong> 4.7 x 4.7 x 1.4 cm / 1.85 x 1.85 x 0.55 inches <br />             <strong>Package Size (L x W x H)  :</strong> 14.3 x 9.5 x 3.0 cm / 5.62 x 3.73 x 1.18 inches                               <strong>Package Contents:</strong> 1 x H - 366 Multi-point 2 In 1 Wireless Bluetooth 4.0 Hands Free Phone Music Audio Receiver Adapter for Car One Connected to Two devices, 1 x Audio Cable, 1 x Car Charger, 1 x Charging Cable