Description: As a digital power amplifier & music player, it RCA/AUX/USB/BT 5.0/TF Card inputs, almost compatible with all home audio device such as phone, tablet, computer, TV, set-box, CD player etc. U-disk and TF card support WAV, APE, FLAC lossless formats . USB interface U-disk, computers (no need for driver) and phones (with OTG function) input. Bluetooth 5.0 achieves stable and faster transmission speed, TF card makes it convenient to enjoy high-quality music even on the road or outdoor. Adopting classic TPA3116 chip, max output power can reach 50Wx2, equipped with 12V5A power supply. The output power is 30W 2 (4 ohms), if connected to 8 ohm speakers. The output is about 15W2, if more power is required, You can configure the power supply by yourself. Be careful not to exceed 24V, otherwise it will burn the chip and the power supply.The source should not be too small, because power = voltage x current, if the current power is less than 50W,There may be a power failure. Compact design and exquisite appearance, attractive chassis with LED display and power / switch, very suitable for home and desktop audio system use. DC 9-24V wide voltage makes it possible to be used in car or motorcycle. 2 Channel Speaker Amplifier, RCA/AUX/USB/Bluetooth 5.0/TF Card inputs Specification: Bluetooth: 5.0 Version Audio Inputs: RCA / 3.5mm AUX / Bluetooth / USB / TF card Audio Output: Banana Speaker Jacks U-disk/TF card Supporting Format: MP3, WAV, APE, FLAC Max U-disk / TF Card Storage: 128G Max Output Power: 50W*2 (24V/4 load) Speaker Impedance: 2-16 Frequency Response: 20Hz-20KHz Working voltage: DC 9V-24V Dimensions (LxWxH): 110x90x50mm Net Weight: 160g Package Weight: 600g Size Chart: 110x90x50mm Package Includes: 1 Digital Power Amplifier 1 User Manual