Features:
Mini HiFi Headphone Amplifier: Mini size design, lightweight and portable, very convenient to carry around; full metal shell, durable and sturdy.
High-quality Sound Output: 3.5mm output jack for connecting headphone or speaker, 3 partition isolation circuit and 2 operational amplifier sets provide you with top sound quality.
Supports Volume Adjustment: With a volume control knob on the front panel, you can adjust volume levels from 0 to 9, easy to operate.
Supports Multiple Devices: 3.5mm input jack design make it compatible with various of digital devices, such as MP3 player, smartphone, tablet, computer, etc.
Built-in Rechargeable Battery: Built-in 2100mAh large capacity lithium battery and can be recharged via the micro USB interface; with 1A USB power output interface, the amplifier can be a backup power for your smartphone or other devices.
Specifications:
Audio I/O: 3.5mm stereo jack
Battery charging port: Micro USB interface
Charging current: 1A
Lithium battery capacity: 2100mAH
Battery life: ＞5-6 hours
Internal operating voltage: ±7.5V
SNR>100dB
THD+N: 0.0003%
Output power: 120mW
Applicable headphone impedance: 16-300Ω
Charging interface: Standard USB
Charging output current: 1A
Item Size: 9.45 * 6 * 1.38cm/ 3.7 * 2.4 * 0.5in
Item Weight: 116g/ 4.1oz
Package Size: 16 * 11 * 6cm/ 6.3 * 4.3 * 2.4in
Package Weight: 261g/ 9.2oz
Packing List:
1 * Headphone Amplifier
1 * 3.5mm Audio Cable(13.5cm long)
1 * Micro USB Charging Cable(20cm long)