16-300Ω HD HIFI Headphone Amplifier Portable Earphone Amp 3.5mm USB Bluetooth US
Features:
✔️  The 16-300Ω HiFi headphone amplifier is exquisite, compact, light and easy to carry.
✔️  3.5mm AUX input and output, SNR>120Db and THD+N 0.0003%, not only can output louder sound, but also can output clearer and more realistic stereo without distortion.
✔️  The two-stage gain switch enhances the signal input to the headphone amplifier circuit, so that the earphone achieves the best performance
✔️ The aluminum matte surface and stylish design provide you with a comfortable hand-held feeling, while the aluminum matte surface makes it durable.
✔️ Rechargeable lithium battery, using 1000mAH capacity rechargeable lithium battery, can work continuously for more than 8 hours.
✔️ The earphone is connected to the OUT/PUT output hole of the host, the 3.5 audio cable is connected to the INPUT input hole of the host and the audio hole of the mobile phone, and the mobile phone plays music. When the host is charging, the red light is always on and the light goes out after it is fully charged.
Specifications:
Color：Black
Material: Metal
Maximum Power Output: 350mW  32Ωload
Load Impedance: 16-300Ω
Working Voltage: DC3.7-4.2V
Charging Voltage: DC5V
Frequency Response: 20Hz-20kHz(±3dB)
Battery Capacity: 1000mAh (3,7V) Lithium-Battery
Amp Using Time: More Than 8 Hours
Distortion: 0.004%SNR: ≥120dB
Dimension(L*W*H): 9.5*6.1*1.5cm/3.74*2.4*0.6in
Package Includes:
HIFI headphone amplifier * 1
TYPE-C charging cable * 1
3.5 audio cable * 1
Chinese and English instruction manual * 1

FREE SAME BUSINESS DAY MONDAY- FRIDAY SHIPPING FROM USA.

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To uphold a shipping speed, your order will be processed almost immediately. If you change your mind after your payment is confirmed, we will do our best to cancel the order, however, we CANNOT guarantee the cancellation.                                     
1. We stand behind our items and offer 30 days warranty. All items are in new and working condition unless specified otherwise elsewhere in the description.

2. All Returns - defective or otherwise - MUST BE PREAUTHORIZED to guarantee refund or exchange. Please contact us to get an authorization and return address. 

3. Buyer agrees to pay for the cost of re-shipment for undeliverable or wrong addresses. 

4. Buyer is responsible for Return Postage as well as a 20% restocking fee if return/replacement is not a result of our mistake such as wrong item.

5. Replacement or Refund will be made upon receipt of the returned item. Please include tracking number so we can process ASAP. If you do not wish to wait for a replacement, please repurchase the item. 

6. ALL REFUNDS will be processed via PayPal. Please double check via PayPal history and transaction for confirmation. PayPal will send it back to whatever you used to pay within 3-5 days. 
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