SPECIFICATIONS

Brand Name: GRWIBEOU

Built-in Battery: Yes

Certification: CE

Choice: yes

Feature 1: 16-300Ohm

Feature 2: Headphone Amplifier

Feature 3: Mini Amplifier

Feature 4: HiFi Earphone Amplifier

Feature 5: Earphone Amplifier

Feature 6: Amplfiers Headphone

Feature 7: 3.5 mm jack Audio input

Feature 8: Home Amplifier

Input Type: LINE IN (AUDIO IN)

Model Number: High Speed 4/7 Ports USB HUB

Origin: Mainland China

Output Type: LINE OUT (AUDIO OUT)

Recommended Headphone Maximum Impedance: 251 - 300 Ohm

Type: Home Amplifier

semi_Choice: yes

Specification:
Plug and play, with volume adjustment knob.
Load impedance: 16-300Ω
Audio input: 3.5 mm jack
Audio output: 3.5 mm jack
Battery capacity: 600mAh
Working voltage: DC3.7-4.2V
Charging voltage: DC5V

* When the headphone amplifier is fully charged, it can work for 8 hours.
* Charging takes 1 to 2 hours, "red light"
* When the battery is fully charged, it will automatically stop charging and "light up in blue"

Note: There may be current interference during charging, please avoid using a headphone amplifier to connect to the phone during charging


Feature:
Support most high-impedance 16-300Ω headphones, 3.5mm AUX input and output, signal-to-noise ratio>100Db, THD+N=0.0003%, fully filter out noise, and enjoy high-quality audio

【Two-stage gain switch】-This headphone amplifier enhances the signal input to the amplifier circuit to achieve the best performance of the headphone. It can not only output louder sound, but also output clearer and more realistic stereo without distortion

【Rechargeable Lithium Battery】--Adopt 600mAH rechargeable lithium battery, which can keep the headphone amplifier working for more than 8 hours. In addition, there is a volume control knob to adjust the volume

[Portable and Lightweight]--This headphone amplifier is designed to let you enjoy music anytime, anywhere; the smooth, sturdy shell and chassis can achieve long-lasting use

[Wide compatibility]-This amplifier is very compatible with various digital devices, such as for MP3, MP4,for iPhone,for iPod, for iPad, computers, CD players and personal media players, for Xbox one, for PS4, for PS5 controllers, etc.

[Good sound quality]-restore the real sound quality with a wide dynamic range, reduce the distortion rate to create a wide and deep sound field, and the sound quality is delicate and accurate.

Package included:
1*Earphone Amplifier
1*Audio cable 
1*USB power supply line 
1*Manual