Kalsten | Portable HIFI headphone amplifier for serious music lovers

Overview:
This model of a HiFi headphone amplifier is specially designed to drive headphones with higher impedance. It can be connected to various audio players and mobile devices to process, amplify, and output audio signals, allowing it to drive all types of earphones.

Features:

• HiFi headphone amplifier, compatible with most high-impedance headphones from 16-300Ω, offers 3.5 mm AUX input and output, a signal-to-noise ratio of > 100Db, THD + N = 0.0003 %, effectively filters interference and allows for premium sound enjoyment.
• QCC3003 Bluetooth 5.0 receiver, designed to deliver wireless studio sound through your ears - whether with your existing wired headphones, earbuds, or even speakers.
• 1000mAH rechargeable lithium battery, with a capacity of 1000mAH, allows for over 8 hours of operational time. Additionally, a volume control is integrated for adjusting the sound level.
• Two-stage amplification switch, optimizes the signal in the amplifier circuit for maximum headphone performance. Allows not only loud sounds but also clear and realistic stereo sound without distortion.
• High compatibility, this amplifier works remarkably well with a variety of digital devices such as MP3, MP4, smartphones, computers, CD players, and portable media players.

Technical Specifications:

• Lithium battery capacity: 1000mAH
• Amplification duration: over 8 hours
• Bluetooth decoding mode: SBC, AAC
• Bluetooth range: up to 10m
• Amplification battery voltage: DC3.7V - 4V
• Internal operating voltage of the amplifier: ±4V
• Output power: 40Mw at 16Ω impedance
• Suitable headphone impedance: 16-300Ω

Included in the package:

• 1 x Bluetooth headphone amplifier
• 1 x USB charging cable
• 1 x 100 cm audio cable
• 1 x user manual