Adopting large color screen digital display, decoder board can show the data distinctly.With call, recording, power-off memory, power amplifier and decoding functions, this decoder board is powerful and practical.It is made of plastic and metal materials, which is reliable and durable. When there is an incoming call, long press the pause button to answer the call. Recording only supports operation in TF mode or USB mode.The length of the product is 9.2cm and the width is 4.1cm.It can be directly connect to speakers, supports the function of MP3/USB/TF/LINE IN/FM/Bluetooth-compatible/remote control. You long press the MODE button to start recording, long press the MODE button again to cancel the recording and play the recording file; long press the pause button to exit the recording mode. When recording, you need to connect a storage device, such as U disk or TF card.Item Name: Decoder Board ModuleMaterial: Plastic, MetalModel: JX-b21Bluetooth-compatible Version: 5.0Power Supply Voltage: DC6V-12VCurrent: 1-3APower: 50WTrue Stereo: 2 x 25WRemote Control Battery: 1 x CR2025 Button Battery (Not Included)Support Song Format: MP3/WMA/WAV/APE/FLACMain Functions: MP3/USB/TF/LINE IN/FM/Bluetooth-compatible/Remote ControlFeatures: Digital Display, Remote Control, Power Failure MemorySize Details: 9.2cm x 4.1cm/3.62" x 1.61" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Decoder Board Module1 x Remote Control (Button Battery Not Included)3 x 2P Cable1 x Single Cable