Feature: 1.16-250Ω HiFi headphone amplifier, it is delicate, compact, lightweight, and portable that it can be carry conveniently. 2.HD3PRO have used SA9227 and ES9038Q2M,DSD256 support,384K/32Bit. 3. 3.5mm AUX and 2.5 balance output, SNR Greater than 120Db and THD+N 0.0003%, make it possibility to output not just louder sound, but a sharper and more real stereo sound without distortion. 5. Aluminum matte surface, fashion design provides you a comfortable handheld feeling while the aluminum matte surface makes it durable. 6. Rechargeable lithium battery, it adopts a rechargeable lithium battery with 2000mAH capacity, which allows it to stay working more than 8 Hours. 7. Universal compatibility, it can remarkably compatible with a various of digital devices, such as mobile phone computer. Specification: Maximum power output:400mW in Impedance 16Ω Load impedance: 16-250Ω Amp Internal Voltage: ±5V Charging voltage: DC5V Frequency response: 5Hz-25kHz(±3dB) Battery capacity: 2000mAh (3,7V) Lithium-Battery Amp Using Time: More Than 8 Hours Distortion: 0.004% SNR: greater than equal 120dB Colour:Bblack Material: Plastic size:9.5x5.8x1.3cm Package List: 1 * HD3 Pro Headphone Amplifier 1 * USB Power Cable 1 * Type-C OTG Cable 1 * Mirco OTG Cable

1. About Payment

We accept payment via Alipay, Paypal. All major credit cards are accepted through secure payment processor ESCROW.

2. About Shipment

Worldwide shipping (Except some countries and APO/FPO);

The following regions cannot deliver:

Spain: postcodes starting with 51, 52, 35, 38 or 07.

If the consignee address is belong to the above areas, please do not place order, the parcel cannot be delivered. thank you.

If you have not received your shipment within 30-60 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction!

3. About Return & Refund

If you are not satisfied with the product you received, please contact us first before open a dispute. We will respond and help to solve the problem once we receive your message.

4. About feedback

Our success depends on your satisfaction, so your feedback is very important to us. If you are satisfied with our products and services, please leave us positive feedback. please contact us before leaving any negative or neutral feedback, we will work with you to solver any problems.

5. Our Service

Warranty: We cover 18 Month warranty for all our products since shipment day. (excluding items damaged and/or misused after receipt). WE DO NOT REPAIR OR REPLACE ITEMS WITH AN EXPIRED WARRANTY.

For all your inquiries about our products, we will reply you in detail within 24 hours.

We have well-trained and professional sales & after-sale services persons who can speak English fluently.

We offer dropshipping. please contact us if you are interested in dropshipping.