Features:<br> 1.  Transfer connection capable of transmitting and receiving signals of various electronic devices.<br> 2.  Digital display on the screen, clearly visible<br> 3.  High performance chip, quick response<br> 4.  A variety of interface cables can support most devices on the market.<br> 5.  Tablet, desktop computer, stereo, car, TV, mobile phone, power amplifier, etc.<br> 6.  The connection is convenient, and the connection can be set according to different requirements.<br> 7.  Support USB flash drive<br> 8.  The product is connected with optical fiber line.<br> Specification:<br> Product Name: Digital Display Bluetooth Receiver<br> Product model: C36<br> Bluetooth version: Bluetooth 5.3<br> Transmission distance: the open area is 10 meters long without any obstacles.<br> Power supply mode: Type-C interface<br> Product dimensions: 90mm (length) x 77mm (width) x 30mm (height)<br> Product weight: 55g<br> Interface type: AUX/ optical fiber/RCA/U disk.<br> Transmission speed: 5(Mbps)<br> Basic functions: Bluetooth receiving/U disk playing.<br> Supporting equipment: mobile phone/tablet/computer/speaker/amplifier, etc.<br> Operating steps:<br> 1.  First, connect the Bluetooth receiver to the speaker with a 3.5mm audio cable, then plug one end of the charging cable into the power supply<br> and the other end into the Type-C charging port, and press and hold the multifunction knob to turn it on;<br> 2.  Find "C36" in the Bluetooth search of the mobile phone, and then select pairing;<br> 3.  After the mobile phone is successfully paired with the device, you can now play music wirelessly,<br> and the machine can control the up and down music (the multi-function knob can be turned to the left to increase the volume, and to the right to decrease the volume);<br> 4.  Your phone is successfully paired for the first time, and it will be automatically reconnected when you turn it on next time.<br> Note: the product has no built-in battery, please use the power supply cable first when using it, and the adapter should be controlled within 5V2A.<br> Product list:<br> Bluetooth adapter *1<br> Optical fiber connection line *1<br> RCA audio cable *1<br> 3.5mm audio cable *1<br> Power cord *1<br> Instructions *1