Specification:
Product Name: 2.8-inch TFT color screen Bluetooth lossless audio player decoder boardColors: Black, SilverScreen Specifications: 2.8-inch 320*240 pixel IPS screenBluetooth Name: Bluetooth Audio (user-configurable)Bluetooth Version: V5.3 + smartphone + smartphoneBluetooth Reception Range: Approximately 10 metersAudio DAC Hardware Bit Width: 24-bitNumber of Output Audio Channels: 2Channel Output Audio Signal Level: <2.8Vp-pAudio Output Signal-to-Noise Ratio: SNR>104dBAudio Output Signal Power: <50mW (supports direct headphone operation; external amplifier required for speaker operation)Operating Voltage: 4.5-5.0V (regulated power supply required)Standby Current: 20mAOperating Current: 30-180mA (mainboard operating current only; power consumption varies depending on state; does not include peripheral current)

Introduction:
1. This product is a multifunctional high-fidelity stereo audio decoder board that integrates Bluetooth audio decoding, TF card and USB flash drive music file decoding, computer USB sound card, and LINE input.2. The front panel is made of aluminum alloy and features a 2.8-inch 320*240 pixel IPS color screen to display playback status and decoding information. It also supports analog audio and digital audio (I2S) output.3. The 3.5mm stereo line-in jack is used to input line-in audio signals from mobile phones, computers, MP3 players, and other devices.4. The built-in equalizer has 7 preset EQ scenes and 1 custom EQ scene, allowing you to adjust the sound quality to your speakers and personal listening preferences.


Mode Description:
1. When playing USB flash drives/TF cards in Music mode, it supports decoding file formats such as MP3, WAV, WMA, FLAC, and APE. Lyrics files can be parsed and displayed synchronously with 1rc lyrics files. Without lyrics files, a 32-segment dynamic spectrum is displayed. 2. In Bluetooth mode, it supports SBC/AAC audio transmission protocols, displays ID3 information such as lyrics and song titles, and displays spectrum.3. In LINE mode, it supports stereo line-in audio input, displaying envelope graphs for both left and right channels and spectrum.4. In USB sound card mode, it supports envelope graphs and spectrum displays.


Package Included:
1 x Audio Decoder Board (Black/Silver optional)1 x M3 Hex Wrench4 x M3x16 Hex Screws with Nuts1 x Remote Controller1 x 3.5mm Audio Jack Cable1 x PH2.0/5PIN to Dupont Cable2 x PH2.0/3PIN Cables1 x PH2.0/2PIN Power Cable
Note:This decoder board operates from a 4.5-5.0V supply voltage. It is recommended to use a linear voltage regulator such as the LM7805 to avoid overvoltage and possible burnout of the decoder board or malfunction due to undervoltage. A 3.7V lithium battery is not recommended for powering the decoder board, as it is too low and unstable for the decoder board.