Attention please! Here comes this 2-in-1 Audio Bluetooth V4.0 Transmitter and Receiver Device， which could switch freely between transmitter and receiver. Our product enables your audio device to transfer stereo audio wirelessly. Plug and play， it needs no special and professional installation. The 2-in-1 audio Bluetooth V4.0 transmitter and receiver device is applicable for various kinds of devices， such as TV， speaker， home theater， portable audio player， mobile phone， computer and so on. A perfect accessory to enrich your daily life!                                    Features             2-in-1， switch freely between transmitter and receiver<br> Enable your audio device to transfer stereo audio wirelessly<br> Plug and play， no installation needed<br> Provide you with wonderful music time<br> Apply to TV， speaker， home theater， portable audio player， mobile phone， computer and so on <br>                                                            Specifications             Bluetooth Version     4.0    <br> Interface Type     3.5mm     <br> Working Distance     3m ~ 10m    <br> Voltage     DC 5V / 120mA    <br> Power Supply     Built-in Rechargeable Lithium Battery    <br> Compatible with     Digital Products Using Bluetooth， Such as iPad， iPhone， Bluetooth Cell phone， Bluetooth PC    <br> Dimensions     (2.8 x 1.81 x 0.39) " / (7.1 x 4.6 x 1) cm (L x W x H)    <br> Weight     1.02 oz / 29 g    <br> Work Modes     Receiver Mode， Transmitter Mode    <br> Color     White       <br>                                                             Package Includes            1 x Bluetooth Audio Receiver & Transmitter<br>1 x USB Power Cable<br>1 x Audio Cable<br>1 x Lotus Head Cable<br>1 x User Manual<br>