Features:● Multi-function: 3 in 1, can be used as Amplifier, USB DAC or Headphone Amplifier
● Support computer, MP3, smart phone, DVD, digital players etc.
● Support HiFi, please you with original sound
● Support OTG connection, connect with android Phone perfectly
● Automatic switch for speaker and headphone
● Synchronize start-up and shutdown with your computer, save time
● Full metal shell, nice touch feelings and wonderful using experience, cool decoration
● Metal RAC input / output interface, abrasion resistant
● Beautiful appearance, perfect gift

Specifications:
Power: DC 12V
● Amplifier:
Maximum output power: 16.3W
Impedance: 4 - 8ohms
Output impedance: 0.2ohm
Frequency response: 20 - 20KHz
Digital noise floor: Less than 1mV
Gain: 28dB
● Headphone amplifier:
Impedance: 16 - 300ohms
Maximum power output: 140mW
Frequency response: 20 - 20KHz
Digital noise floor: Less than 0.01mV
Gain: 6.5dB
● Decoder:
Sampling frequency: 48KHz
Sampling resolution: 16bit Channels: 2 (2.0)
Model Number: TP30MK2
Special Feature: Mini,Portable
Usage: Plug and play Package weight: 1.066 kg
Product Size(L x W x H): 18.00 x 12.50 x 4.00 cm / 7.09 x 4.92 x 1.57 inches
Package Size(L x W x H): 28.00 x 20.00 x 8.00 cm / 11.02 x 7.87 x 3.15 inches Package Contents: 1 x Amplifier, 1 x USB Cable, 1 x Power Adapter, 1 x Power Cable, 1 x Bilingual User Manual in English and Chinese