Portable HIFI headphone amplifier for serious music lovers

Overview：
This HiFi headphone amplifier design is usually used to power headphones with relatively high impedance. It can be connected to various audio players and mobile phones and process, amplify and output their audio signals, which can power all kinds of headphones.

Features: the headphones with microphone are suitable for playing music, which are designed for listening and listening:

• Supports most high impedance headphones 16-300 Ω, 3.5mm input and AUX output, signal-to-noise ratio >100dB, THD+N=0.0003%, fully filter noise, enjoy high quality sound.
• The QCC3003 Bluetooth 5.0 receiver, is designed to deliver studio-quality sound through your ears WIRELESSLY - using your existing wired headphones, headsets or even speakers.
• Rechargeable 1000 mAH Lithium Battery, Uses a 1000 mAH rechargeable lithium battery that allows you to stay in operation for over 8 hours. In addition, there is a volume knob.
• Two-stage gain switch, Increases the input signal to the amplifier circuit for optimal headphone performance. Allows you to output not only louder sound, but also sharper and more realistic stereo sound without distortion.
• Wide compatibility, This amplifier is remarkably compatible with a variety of digital devices such as MP3, MP4, mobile phone, computer, CD players and personal media players.

Specifications：

• Lithium battery capacity: 1000mAH
• Amplifier usage time: more than 8 hours
• Bluetooth decoding mode: SBC, AAC
• Bluetooth distance: max 10m
• Battery Amp Voltage: DC3.7V - 4V
• Amplifier internal working voltage: ±4V
• Output Power: 40Mw at 16Ω impedance
• Customized headphone impedance: 16-300Ω

Package Contents:

• Set: 1 x Bluetooth headphone amplifier
• 1 x USB power cable
• 1 x 100cm audio cable
• 1 x user manual