Features:
Mini pre-amplifier for connecting with power amplifier to get HiFi music.
Can match with digital power amplifier, analog power amplifier or active speaker.
Adopts classical 6J1 tube, removable tube design for convenient replacement and upgrade.
Patented power conversion module, DC 12V power supply.
All aluminum alloy shell, durable and exquisite.
With gold-plated RCA input(L !#!amp!*! R) and output (L !#!amp!*! R) jacks.

Specifications:
Color: Black
Material: Aluminum Alloy
Tube: 2 * 6J1 Vacuum Tubes
SNR: 100dB
Input Sensitivity: 300MV-2000MV
Output: 3000MV
THD: 1000MV 0.1%
Power Supply: DC 12V 1A
Power Adapter: US plug, input--100-240V 50/60Hz 0.3A, output--12V 1.0A
Item Size: 10 * 10 * 3cm / 3.9 * 3.9 * 1.2in
Item Weight: 295g / 10.4oz
Package Size: 22.5 * 17 * 6cm / 8.9 * 6.7 * 2.4in
Package Weight: 500g / 17.6oz

Note:
This product is a pre-amplifier, and it needs to be connected with power amplifier for use.

Package List:
1 * Pre-amplifier
2 * 6J1 Vacuum Tubes
1 * RCA Cable (about 95cm long)
1 * Power Adapter(US)