LePai Car Amplifier LP-V3 Hi-Fi Enthusiast of high-quality TDA8566 (Bose) Chip Using boses high-quality audio power TDA8566 Chip, sound fine, strong voice powerful features. With overload, short circuit, overheat protection. With treble, bass, and volume control. Power switch control, power light and the signal direction. Voltage - 12 (V), Maximum Power - 25 (W), Impedance 4-8 (ohm)