The vinyl record player is a multifunctional home music center in recoding and playing, CD player, cassette player, AM/FM radio, remote control, Aux in and RCA line out. If you have a Bluetooth 3.0 device, allows for a smooth and effortless connection between the turntable and any Bluetooth-enabled device, providing users with the utmost convenience and a superior listening experience. Instructions for volume adjustment: 1. Press the CD/FM stereo button and then press the volume button to the maximum. 2. When the remote control's battery is depleted or weak, pressing the volume button may not work properly, then need to replace the battery to ensure normal operation of functions like the volume button.