Feature 1 Made of aluminum alloy, corrosion resistance, high strength, sturdy and durable. 2 Powerful, stable and reliable, high chip integration, support MP3, WAV, WMA, APE and other audio formats. 3 Bluetooth, USB, digital to analog conversion and transmission to ordinary speakers for playback, upgraded use of ordinary speakers. 4 You can use the remote control to play or pause, switch the previous song and the next song. 5 Suitable for home theater, U disk music, home K song, mobile phone music and other scenes.Item Type: Audio DecoderMaterial: Aluminum AlloyProduct Model: YQ-31Bluetooth Version: 5.0Bluetooth Protocol: A2DP, AVRCP, PBAPU Disk Input: FAT32 Up to 32GMusic Format: MP3, WAV, WMA, APE, FLAC, SBCSignal to Noise Ratio: 90dBDAC SNR: 96dBFrequency Response: 20Hz-20kHzSound Effect Mode: Rock, Jazz, Classical, CountryButton Battery for Remote Control: One CR2025 (Included)Battery Capacity: 100mAh Package List1 x Audio Decoder1 x Bluetooth Antenna1 x Charging Cable1 x Optical Audio Cable1 x Instruction Book1 x Remote Control