Audio Input: RCA / U-Disk / Bluetooth
Voltage Input: 19V4.7A
Rated output power: 8ohm 2*30w , 4ohm 2*50W
SNR:﹥99d

Headphone Output
Output Power: ﹥=1300mW (32 ohms)
Adaptation Headphone impedance: 32-600 ohms
THD: <0.005%
SNR: ﹥105DB
Response Frequency: 20-30khz

Package Included:
1* AMP
2* 6H3N Tube
1* Antenna
1* Power Supply