U.S. warehouse Ship within 24 hours Arrival time 3-8day Description Rechargeable Stero XU09 Portable Headphone Amplifier DAC Effective Sound Card Features: Portable, small and exquisite, easy to use and carry Compatible with high-quality, high-impedance (16 ~ 150 ohms), low-sensitivity, low-power headphones, to ensure high-quality sound Long-lasting (approx. 8 hours) rechargeable Lithium polymer battery for long journeys, multimedia work Conveniently located rotary switch for on, off and volume control Replaceable Operational Amplifier, you can enjoin different timbre styles with different op-amp collocation Specification: Color: Black Material: Steel Model: XU09 Size: 97x60x15mm InputOutput Port: 3.5mm Studio Input Lithium Battery Capacity: 2000mAh Amp Using Time: More Than 8 Hours Amp Internal Voltage: 8.3V1A Output Power: 40Mw Impedance 16Ω Adapted Headphone Impedance: 16-150Ω SNR:>100Db THD+N: 0.0003% What is included: 1 x Headphone Amplifier 1 x USB Cable 1 x Audio Cable Policies Payment: We Accept Paypal Only. Payment must be made in 3 days after auction close; otherwise the item may resell and be out of stock. Shipment: Usually we arrange shipping in 1 business day after payment confirmed. Orders from the USA will all be shipped out via Carrier USPS . Usually it takes up 3~8 business days for delivery. Delivery time (including weekend): 5.21%(1~2days)----65.68%(3~5D)----22.19%(6~8D)----2.47%(9~10D)----1.26%(above 10D) When you find track information is abnormal or not get goods in 10 days, please feel free to email contact us first for troubleshooting, Dont open dispute case immediately Please. Warrenty & RMA: 6 months Manufacturers Warranty for defective items (excluding items damaged andor misused after receipt). Accessories come with a 3-month warranty. In order to return an item you must contact us to request a RMA No. Please returned items in the original packaging, fill in RMA number on package, and PROVIDE us reason for the return, and your eBay ID. Return shipping is to be paid by the Buyer if you buy wrong or just dont want it , Please check the description and size of items before you make a order. Service & Contact: We hope you have a pleasant shopping experience with us and satisfy 100%. If there are any item or delivery problems, please email contact us first, BEFORE you leave neutral or negative feedback, or 1,2,3 ratings, so that we can address your concerns. Please give us the opportunity to resolve any problem. Usually, we response your email in 1 business day.