General Information
- Aluminum brushed shell
- 2380MA lithium battery
User Interfaces:
• Input: 3.5mm mini-jack audio input
• Output: 3.5mm mini-jack audio output
• Charging input: Android USB universal phone charge port
• Switch: Power switcher
• Volume control knob
Parameters :
(roughly estimated power output: 100mW @ 32 ohms)
• Impedance headphones supported : 12-300ohm
• Frequency Response: 13Hz - 23kH
• Battery volume : 2380MA
• Dimension: 11*6*1.4cm(including the knob)
• Net weight: 0.1kg
• Color options: Black or Red
Product package include:
• 1 x U3 MINI portable Amplifier
• 1 x 3.5mm to 3.5mm jack audio cable
• 1 x Bundle tapes
• 1 x Rechargeable Lithium battery 2380MA(inside)
• 1 x OPA2604AP op-amp chip(inside)
- 2380MA lithium battery
User Interfaces:
• Input: 3.5mm mini-jack audio input
• Output: 3.5mm mini-jack audio output
• Charging input: Android USB universal phone charge port
• Switch: Power switcher
• Volume control knob
Parameters :
(roughly estimated power output: 100mW @ 32 ohms)
• Impedance headphones supported : 12-300ohm
• Frequency Response: 13Hz - 23kH
• Battery volume : 2380MA
• Dimension: 11*6*1.4cm(including the knob)
• Net weight: 0.1kg
• Color options: Black or Red
Product package include:
• 1 x U3 MINI portable Amplifier
• 1 x 3.5mm to 3.5mm jack audio cable
• 1 x Bundle tapes
• 1 x Rechargeable Lithium battery 2380MA(inside)
• 1 x OPA2604AP op-amp chip(inside)
Anyway i also ordered with that muses02 chip to upgrade original amp but till now seems very hard to unscrew one of the four screws in the upper surface of bluebird close to the volume knob....
Tried any kind of screwdrivers but that screw cant be rotated no matter how hard i have tried...
Any ideas?