Description: CSR8635 audio dedicated module, beautiful sound quality. The main filter capacitor uses a ruby capacitor. NE5532 high efficiency, high sound quality. TPA3116D2 new product, one to do left and right channel power amplification, a bridge drive subwoofer. 2.1 Bluetooth digital power amplifier with Bluetooth, RCA, 3.5 input interface, suitable for fans who set up 2.1 system, or replace, upgrade the 2.1 system power amplifier part. Specification: Input: Bluetooth 4.0 RCA Simulation 3.5 Simulation Output: 2.1 channels (left channel + right channel + subwoofer channel) Frequency: 20HZ-20KHZ Impedance matching: 4-8 ohms Dynamic range: 98DB Signal to noise ratio: 86DB Power consumption: 0-100W Output power: 50W+50W+100W, left and right channels 50W/4 ohms, (25W, 8 ohms), subwoofer channel 4 ohms 100W, 8 ohms 50W Package Includes: 1x 2.1 Digital Amp Bluetooth Bass Hifi Decoder