This headphone amplifier is delicate, compact, lightweight, and portable, can improve your smartphone sound quality, making it possible for you to enjoy clear pure stereo sound without distortion.

Features:
It is delicate, compact, lightweight, and portable so that it can be carried conveniently.
3.5mm AUX input and output, 95db SNR, make it possible to output not just louder sound, but also more clear and more real stereo sound without distortion.
It adopts a rechargeable lithium battery with 200mAh capacity, which allows it to stay working long time.
It is specially designed for mobile phones, but also can be used to car audio, outdoor speaker and so on.
Noise reduction function, and distortion with enhanced dynamics, perfect pure stereo effect, clear voice music sound quality optimization.

Specifications:
Color: gray, black (optional)
Output power: Max.130mw * 2 / 16Ω
Frequency / response: 20-27KHZ 27KHZ
Signal to noise ratio: 95DB
Dynamic range: 90db
Separation: 70db
Distortion: ≤0.00 6%
Input impedance: 32 Ω
Output impedance: ≤ 200 Ω
Operating temperature: -40℃ ~ 60℃
Storage temperature: -40℃ ~ 85℃
Storage humidity: 10% ~ 90%
Battery: 3.7V, 200mah
Battery endurance: approx. 25 hours
Item size: 68 * 25 * 11mm / 2.7 * 1.0 * 0.4in
Item weight: 29g / 1.0ounce
Package size:125 * 60 * 25mm / 4.9 * 2.4 * 1.0in
Package weight: 51g / 1.8ounce

Package list:
1 * Headphone Amplifier

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Thương hiệu: OEM

SD05 Headphone Amplifier Professional Portable Mini 3.5mm Earphone Audio Amplifier for Mobile Phones