F19E TDA7492P AUX 50Wx2 Bluetooth4.0 Receiver Digital Amplifier Board Acrylic Case     OOTDTY        Description:   100% brand new and high quality.   Feature:   Made of high-quality PCB board and transparent acrylic material, durable, firm and stable for us to use.   Tda7492p digital power amplifier chip, optimized circuit design, very good sound quality, high power.   Dip switch can adjust amplifier to better promote larger damping pad.   Stereo input various versions of Bluetooth-compatible connection, using csr8630 Bluetooth-compatible chip, Bluetooth-compatible v4.0, high software compatibility.   The official output power is 25Wx2, which can reach 50Wx2 through the gain. Enough output power. The dial switch can more easily adjust the gain of the rear stage power amplifier, and better push the horn with larger damping.   Easy and simple to assemble and operate with the accessories, practical and useful.      Using Method:   Connect the power supply, wait for 3 seconds, until the LED blue light and red light alternately flash, then you can use your device to find my Bluetooth-compatible module, you will find "Sanwu", and then connect it, later you can directly use memory to connect automatically.      Specifications:   Item Type: Amplifier Board+Acrylic Case   Power supply: 2.1 interface, 8-25v DC   Bluetooth-compatible Version: 4.0   Output impedance: 8Ω(4,6,8,16Ω impedance can drive loudspeaker)   Output Power: 25Wx2   Material: Amplifier Board: PCB, Shell: Acrylic   Size: 8.2x5x2.5cm/3.2x1.9x0.9in   Color: Red   Quantity: 1 Pc      Note:   Transition: 1cm=10mm=0.39inch   Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid.   Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you       Package Includes:   1 x Amplifier Board   1 x Acrylic Case   1 x Some Accessories