Low loss metal film capacitor, dedicated inductor for digital power amplifiers. Gold plated socket with fine conductivity and high reliability. UltraLow noise, PureSound quality. Left and right channel GainAdjustment function. Can be connected to an external BT antenna.<br><br>Protections against overvoltage, short circuit, overheating, undervoltage, etc. Specifications: Color: As shown Main material: abs Power: DC12-36V/8A BT: 5.2 Audio input: BT+AUX+U disk+USB Sound Card Frequency range: 20Hz-20KHz BT audio decoding: AAC/SBC U disk decoding: WAV/FLAC/APE/MP3 Output power: 2 x 10W@8Ω/12VDC, 2 x 20W@4Ω/12VDC, 2 x 35W@8Ω/24VDC, 2 x 70W@4Ω/24VDC, 2 x 80W@8Ω/36VDC, 2 x 160W@4Ω/36VDC, 2 x 220W@3Ω/36VDC Item size: 125 x 88 x 32mm / 4.9 x 3.5 x 1.3in<br><br>Package Contents: 1 x Audio amplifier board<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.